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Finding the Fourth Proportional to 273,548.70, 410,323.05 and 86,560.20

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Solution

The fourth proportional to 273,548.70, 410,323.05 and 86,560.20 is: 129,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,548.70 : 410,323.05 = 86,560.20 : x
  2. Step 2: Convert to fraction form
    273,548.70/410,323.05 = 86,560.20/x
  3. Step 3: Cross multiply
    273,548.70x = 410,323.05 × 86,560.20
  4. Step 4: Simplify right side
    273,548.70x = 35,517,645,272.61
  5. Step 5: Solve for x
    x = 35,517,645,272.61/273,548.70
  6. Step 6: Final answer
    x = 129,840.30

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1.5x scale

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.