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Finding the Fourth Proportional to 132,585.36, 198,803.92 and 43,815.04

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Solution

The fourth proportional to 132,585.36, 198,803.92 and 43,815.04 is: 65,698.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,585.36 : 198,803.92 = 43,815.04 : x
  2. Step 2: Convert to fraction form
    132,585.36/198,803.92 = 43,815.04/x
  3. Step 3: Cross multiply
    132,585.36x = 198,803.92 × 43,815.04
  4. Step 4: Simplify right side
    132,585.36x = 8,710,601,706.96
  5. Step 5: Solve for x
    x = 8,710,601,706.96/132,585.36
  6. Step 6: Final answer
    x = 65,698.07

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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.