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Finding the Third Proportional to 87,490,368 and 191,457,432

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Solution

The third proportional to 87,490,368 and 191,457,432 is: 418,971,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,490,368 : 191,457,432 = 191,457,432 : x
  2. Step 2: Convert to fraction form
    87,490,368/191,457,432 = 191,457,432/x
  3. Step 3: Cross multiply
    87,490,368x = 191,457,432 × 191,457,432
  4. Step 4: Simplify right side
    87,490,368x = 36,655,948,268,034,624
  5. Step 5: Solve for x
    x = 36,655,948,268,034,624/87,490,368
  6. Step 6: Final answer
    x = 418,971,243.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.