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Finding the Fourth Proportional to 99,816,008.80, 149,724,013.20 and 99,816,008.80

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Solution

The fourth proportional to 99,816,008.80, 149,724,013.20 and 99,816,008.80 is: 149,724,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,816,008.80 : 149,724,013.20 = 99,816,008.80 : x
  2. Step 2: Convert to fraction form
    99,816,008.80/149,724,013.20 = 99,816,008.80/x
  3. Step 3: Cross multiply
    99,816,008.80x = 149,724,013.20 × 99,816,008.80
  4. Step 4: Simplify right side
    99,816,008.80x = 14,944,853,419,142,514
  5. Step 5: Solve for x
    x = 14,944,853,419,142,514/99,816,008.80
  6. Step 6: Final answer
    x = 149,724,013.20

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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.