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Finding the Third Proportional to 71,117,982 and 155,157,776

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Solution

The third proportional to 71,117,982 and 155,157,776 is: 338,507,010.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,117,982 : 155,157,776 = 155,157,776 : x
  2. Step 2: Convert to fraction form
    71,117,982/155,157,776 = 155,157,776/x
  3. Step 3: Cross multiply
    71,117,982x = 155,157,776 × 155,157,776
  4. Step 4: Simplify right side
    71,117,982x = 24,073,935,453,266,176
  5. Step 5: Solve for x
    x = 24,073,935,453,266,176/71,117,982
  6. Step 6: Final answer
    x = 338,507,010.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.