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Finding the Fourth Proportional to 435,687.87, 653,532.31 and 136,170.01

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Solution

The fourth proportional to 435,687.87, 653,532.31 and 136,170.01 is: 204,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,687.87 : 653,532.31 = 136,170.01 : x
  2. Step 2: Convert to fraction form
    435,687.87/653,532.31 = 136,170.01/x
  3. Step 3: Cross multiply
    435,687.87x = 653,532.31 × 136,170.01
  4. Step 4: Simplify right side
    435,687.87x = 88,991,501,188.02
  5. Step 5: Solve for x
    x = 88,991,501,188.02/435,687.87
  6. Step 6: Final answer
    x = 204,255.17

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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.