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Finding the Fourth Proportional to 114,671.13, 158,240.79 and 63,687.15

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Solution

The fourth proportional to 114,671.13, 158,240.79 and 63,687.15 is: 87,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,671.13 : 158,240.79 = 63,687.15 : x
  2. Step 2: Convert to fraction form
    114,671.13/158,240.79 = 63,687.15/x
  3. Step 3: Cross multiply
    114,671.13x = 158,240.79 × 63,687.15
  4. Step 4: Simplify right side
    114,671.13x = 10,077,904,928.85
  5. Step 5: Solve for x
    x = 10,077,904,928.85/114,671.13
  6. Step 6: Final answer
    x = 87,885.28

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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.