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Finding the Fourth Proportional to 74,951.77, 103,432.17 and 40,959.52

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Solution

The fourth proportional to 74,951.77, 103,432.17 and 40,959.52 is: 56,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.77 : 103,432.17 = 40,959.52 : x
  2. Step 2: Convert to fraction form
    74,951.77/103,432.17 = 40,959.52/x
  3. Step 3: Cross multiply
    74,951.77x = 103,432.17 × 40,959.52
  4. Step 4: Simplify right side
    74,951.77x = 4,236,532,035.76
  5. Step 5: Solve for x
    x = 4,236,532,035.76/74,951.77
  6. Step 6: Final answer
    x = 56,523.44

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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.