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Finding the Fourth Proportional to 186,720,829.70, 261,791,799.10 and 186,720,829.70

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Solution

The fourth proportional to 186,720,829.70, 261,791,799.10 and 186,720,829.70 is: 261,791,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,720,829.70 : 261,791,799.10 = 186,720,829.70 : x
  2. Step 2: Convert to fraction form
    186,720,829.70/261,791,799.10 = 186,720,829.70/x
  3. Step 3: Cross multiply
    186,720,829.70x = 261,791,799.10 × 186,720,829.70
  4. Step 4: Simplify right side
    186,720,829.70x = 48,881,981,936,607,712
  5. Step 5: Solve for x
    x = 48,881,981,936,607,712/186,720,829.70
  6. Step 6: Final answer
    x = 261,791,799.10

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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.