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Finding the Fourth Proportional to 273,468.60, 410,200.20 and 86,480.10

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Solution

The fourth proportional to 273,468.60, 410,200.20 and 86,480.10 is: 129,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,468.60 : 410,200.20 = 86,480.10 : x
  2. Step 2: Convert to fraction form
    273,468.60/410,200.20 = 86,480.10/x
  3. Step 3: Cross multiply
    273,468.60x = 410,200.20 × 86,480.10
  4. Step 4: Simplify right side
    273,468.60x = 35,474,154,316.02
  5. Step 5: Solve for x
    x = 35,474,154,316.02/273,468.60
  6. Step 6: Final answer
    x = 129,719.30

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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.