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Finding the Fourth Proportional to 97,859,097.80, 146,788,646.70 and 65,610,470.60

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Solution

The fourth proportional to 97,859,097.80, 146,788,646.70 and 65,610,470.60 is: 98,415,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,859,097.80 : 146,788,646.70 = 65,610,470.60 : x
  2. Step 2: Convert to fraction form
    97,859,097.80/146,788,646.70 = 65,610,470.60/x
  3. Step 3: Cross multiply
    97,859,097.80x = 146,788,646.70 × 65,610,470.60
  4. Step 4: Simplify right side
    97,859,097.80x = 9,630,872,188,724,136
  5. Step 5: Solve for x
    x = 9,630,872,188,724,136/97,859,097.80
  6. Step 6: Final answer
    x = 98,415,705.90

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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.