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Finding the Third Proportional to 90,693,280 and 136,791,565.25

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Solution

The third proportional to 90,693,280 and 136,791,565.25 is: 206,321,045.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,693,280 : 136,791,565.25 = 136,791,565.25 : x
  2. Step 2: Convert to fraction form
    90,693,280/136,791,565.25 = 136,791,565.25/x
  3. Step 3: Cross multiply
    90,693,280x = 136,791,565.25 × 136,791,565.25
  4. Step 4: Simplify right side
    90,693,280x = 18,711,932,323,545,008
  5. Step 5: Solve for x
    x = 18,711,932,323,545,008/90,693,280
  6. Step 6: Final answer
    x = 206,321,045.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.