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Finding the Fourth Proportional to 88,863.70, 133,079.55 and 47,218.90

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Solution

The fourth proportional to 88,863.70, 133,079.55 and 47,218.90 is: 70,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,863.70 : 133,079.55 = 47,218.90 : x
  2. Step 2: Convert to fraction form
    88,863.70/133,079.55 = 47,218.90/x
  3. Step 3: Cross multiply
    88,863.70x = 133,079.55 × 47,218.90
  4. Step 4: Simplify right side
    88,863.70x = 6,283,869,963.50
  5. Step 5: Solve for x
    x = 6,283,869,963.50/88,863.70
  6. Step 6: Final answer
    x = 70,713.58

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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.