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Finding the Fourth Proportional to 86,097,816,004.80, 129,146,724,007.20 and 86,097,816,004.80

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Solution

The fourth proportional to 86,097,816,004.80, 129,146,724,007.20 and 86,097,816,004.80 is: 129,146,724,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,097,816,004.80 : 129,146,724,007.20 = 86,097,816,004.80 : x
  2. Step 2: Convert to fraction form
    86,097,816,004.80/129,146,724,007.20 = 86,097,816,004.80/x
  3. Step 3: Cross multiply
    86,097,816,004.80x = 129,146,724,007.20 × 86,097,816,004.80
  4. Step 4: Simplify right side
    86,097,816,004.80x = 11,119,250,881,194,592,567,296
  5. Step 5: Solve for x
    x = 11,119,250,881,194,592,567,296/86,097,816,004.80
  6. Step 6: Final answer
    x = 129,146,724,007.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.