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Finding the Fourth Proportional to 132,485.92, 198,730.48 and 52,543.52

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Solution

The fourth proportional to 132,485.92, 198,730.48 and 52,543.52 is: 78,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,485.92 : 198,730.48 = 52,543.52 : x
  2. Step 2: Convert to fraction form
    132,485.92/198,730.48 = 52,543.52/x
  3. Step 3: Cross multiply
    132,485.92x = 198,730.48 × 52,543.52
  4. Step 4: Simplify right side
    132,485.92x = 10,441,998,950.49
  5. Step 5: Solve for x
    x = 10,441,998,950.49/132,485.92
  6. Step 6: Final answer
    x = 78,815.91

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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.