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Finding the Fourth Proportional to 61,358.70, 92,038.90 and 40,432.70

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Solution

The fourth proportional to 61,358.70, 92,038.90 and 40,432.70 is: 60,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,358.70 : 92,038.90 = 40,432.70 : x
  2. Step 2: Convert to fraction form
    61,358.70/92,038.90 = 40,432.70/x
  3. Step 3: Cross multiply
    61,358.70x = 92,038.90 × 40,432.70
  4. Step 4: Simplify right side
    61,358.70x = 3,721,381,232.03
  5. Step 5: Solve for x
    x = 3,721,381,232.03/61,358.70
  6. Step 6: Final answer
    x = 60,649.61

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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.