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Finding the Fourth Proportional to 132,615.95, 198,886.86 and 52,617.92

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Solution

The fourth proportional to 132,615.95, 198,886.86 and 52,617.92 is: 78,912.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,615.95 : 198,886.86 = 52,617.92 : x
  2. Step 2: Convert to fraction form
    132,615.95/198,886.86 = 52,617.92/x
  3. Step 3: Cross multiply
    132,615.95x = 198,886.86 × 52,617.92
  4. Step 4: Simplify right side
    132,615.95x = 10,465,011,894.10
  5. Step 5: Solve for x
    x = 10,465,011,894.10/132,615.95
  6. Step 6: Final answer
    x = 78,912.17

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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.