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Finding the Fourth Proportional to 88,218,123.90, 123,632,919.30 and 88,218,123.90

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Solution

The fourth proportional to 88,218,123.90, 123,632,919.30 and 88,218,123.90 is: 123,632,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,218,123.90 : 123,632,919.30 = 88,218,123.90 : x
  2. Step 2: Convert to fraction form
    88,218,123.90/123,632,919.30 = 88,218,123.90/x
  3. Step 3: Cross multiply
    88,218,123.90x = 123,632,919.30 × 88,218,123.90
  4. Step 4: Simplify right side
    88,218,123.90x = 10,906,664,192,926,102
  5. Step 5: Solve for x
    x = 10,906,664,192,926,102/88,218,123.90
  6. Step 6: Final answer
    x = 123,632,919.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.