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Finding the Fourth Proportional to 435,612.42, 653,549.85 and 136,080.90

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Solution

The fourth proportional to 435,612.42, 653,549.85 and 136,080.90 is: 204,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,612.42 : 653,549.85 = 136,080.90 : x
  2. Step 2: Convert to fraction form
    435,612.42/653,549.85 = 136,080.90/x
  3. Step 3: Cross multiply
    435,612.42x = 653,549.85 × 136,080.90
  4. Step 4: Simplify right side
    435,612.42x = 88,935,651,782.87
  5. Step 5: Solve for x
    x = 88,935,651,782.87/435,612.42
  6. Step 6: Final answer
    x = 204,162.34

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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.