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Finding the Fourth Proportional to 75,337.88, 112,963.08 and 28,565.24

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Solution

The fourth proportional to 75,337.88, 112,963.08 and 28,565.24 is: 42,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,337.88 : 112,963.08 = 28,565.24 : x
  2. Step 2: Convert to fraction form
    75,337.88/112,963.08 = 28,565.24/x
  3. Step 3: Cross multiply
    75,337.88x = 112,963.08 × 28,565.24
  4. Step 4: Simplify right side
    75,337.88x = 3,226,817,491.34
  5. Step 5: Solve for x
    x = 3,226,817,491.34/75,337.88
  6. Step 6: Final answer
    x = 42,831.28

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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.