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Finding the Third Proportional to 57,042 and 121,473

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Solution

The third proportional to 57,042 and 121,473 is: 258,681.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,042 : 121,473 = 121,473 : x
  2. Step 2: Convert to fraction form
    57,042/121,473 = 121,473/x
  3. Step 3: Cross multiply
    57,042x = 121,473 × 121,473
  4. Step 4: Simplify right side
    57,042x = 14,755,689,729
  5. Step 5: Solve for x
    x = 14,755,689,729/57,042
  6. Step 6: Final answer
    x = 258,681.14

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.