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Finding the Fourth Proportional to 132,356.80, 198,492.52 and 43,589.20

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Solution

The fourth proportional to 132,356.80, 198,492.52 and 43,589.20 is: 65,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,356.80 : 198,492.52 = 43,589.20 : x
  2. Step 2: Convert to fraction form
    132,356.80/198,492.52 = 43,589.20/x
  3. Step 3: Cross multiply
    132,356.80x = 198,492.52 × 43,589.20
  4. Step 4: Simplify right side
    132,356.80x = 8,652,130,152.78
  5. Step 5: Solve for x
    x = 8,652,130,152.78/132,356.80
  6. Step 6: Final answer
    x = 65,369.74

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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.