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Finding the Fourth Proportional to 373,127.81, 514,930.14 and 212,010.17

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Solution

The fourth proportional to 373,127.81, 514,930.14 and 212,010.17 is: 292,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,127.81 : 514,930.14 = 212,010.17 : x
  2. Step 2: Convert to fraction form
    373,127.81/514,930.14 = 212,010.17/x
  3. Step 3: Cross multiply
    373,127.81x = 514,930.14 × 212,010.17
  4. Step 4: Simplify right side
    373,127.81x = 109,170,423,944.87
  5. Step 5: Solve for x
    x = 109,170,423,944.87/373,127.81
  6. Step 6: Final answer
    x = 292,581.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.