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Finding the Fourth Proportional to 434,562.40, 651,843.60 and 135,040.60

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Solution

The fourth proportional to 434,562.40, 651,843.60 and 135,040.60 is: 202,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,562.40 : 651,843.60 = 135,040.60 : x
  2. Step 2: Convert to fraction form
    434,562.40/651,843.60 = 135,040.60/x
  3. Step 3: Cross multiply
    434,562.40x = 651,843.60 × 135,040.60
  4. Step 4: Simplify right side
    434,562.40x = 88,025,350,850.16
  5. Step 5: Solve for x
    x = 88,025,350,850.16/434,562.40
  6. Step 6: Final answer
    x = 202,560.90

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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.