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Finding the Fourth Proportional to 101,334.62, 139,822.53 and 63,591.86

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Solution

The fourth proportional to 101,334.62, 139,822.53 and 63,591.86 is: 87,744.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,334.62 : 139,822.53 = 63,591.86 : x
  2. Step 2: Convert to fraction form
    101,334.62/139,822.53 = 63,591.86/x
  3. Step 3: Cross multiply
    101,334.62x = 139,822.53 × 63,591.86
  4. Step 4: Simplify right side
    101,334.62x = 8,891,574,752.61
  5. Step 5: Solve for x
    x = 8,891,574,752.61/101,334.62
  6. Step 6: Final answer
    x = 87,744.69

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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.