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Finding the Fourth Proportional to 61,502.20, 92,123.70 and 51,134.20

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Solution

The fourth proportional to 61,502.20, 92,123.70 and 51,134.20 is: 76,593.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,502.20 : 92,123.70 = 51,134.20 : x
  2. Step 2: Convert to fraction form
    61,502.20/92,123.70 = 51,134.20/x
  3. Step 3: Cross multiply
    61,502.20x = 92,123.70 × 51,134.20
  4. Step 4: Simplify right side
    61,502.20x = 4,710,671,700.54
  5. Step 5: Solve for x
    x = 4,710,671,700.54/61,502.20
  6. Step 6: Final answer
    x = 76,593.55

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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.