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Finding the Fourth Proportional to 132,433.60, 198,322.35 and 84,975.70

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Solution

The fourth proportional to 132,433.60, 198,322.35 and 84,975.70 is: 127,253.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,433.60 : 198,322.35 = 84,975.70 : x
  2. Step 2: Convert to fraction form
    132,433.60/198,322.35 = 84,975.70/x
  3. Step 3: Cross multiply
    132,433.60x = 198,322.35 × 84,975.70
  4. Step 4: Simplify right side
    132,433.60x = 16,852,580,516.90
  5. Step 5: Solve for x
    x = 16,852,580,516.90/132,433.60
  6. Step 6: Final answer
    x = 127,253.06

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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.