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Finding the Fourth Proportional to 96,143.92, 132,680.70 and 53,702.55

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Solution

The fourth proportional to 96,143.92, 132,680.70 and 53,702.55 is: 74,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,143.92 : 132,680.70 = 53,702.55 : x
  2. Step 2: Convert to fraction form
    96,143.92/132,680.70 = 53,702.55/x
  3. Step 3: Cross multiply
    96,143.92x = 132,680.70 × 53,702.55
  4. Step 4: Simplify right side
    96,143.92x = 7,125,291,925.79
  5. Step 5: Solve for x
    x = 7,125,291,925.79/96,143.92
  6. Step 6: Final answer
    x = 74,110.69

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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.