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Finding the Fourth Proportional to 145,062.38, 217,443.87 and 60,871.43

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Solution

The fourth proportional to 145,062.38, 217,443.87 and 60,871.43 is: 91,244.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,062.38 : 217,443.87 = 60,871.43 : x
  2. Step 2: Convert to fraction form
    145,062.38/217,443.87 = 60,871.43/x
  3. Step 3: Cross multiply
    145,062.38x = 217,443.87 × 60,871.43
  4. Step 4: Simplify right side
    145,062.38x = 13,236,119,311.63
  5. Step 5: Solve for x
    x = 13,236,119,311.63/145,062.38
  6. Step 6: Final answer
    x = 91,244.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.