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Finding the Fourth Proportional to 104,617.60, 156,926.40 and 69,443.20

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Solution

The fourth proportional to 104,617.60, 156,926.40 and 69,443.20 is: 104,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,617.60 : 156,926.40 = 69,443.20 : x
  2. Step 2: Convert to fraction form
    104,617.60/156,926.40 = 69,443.20/x
  3. Step 3: Cross multiply
    104,617.60x = 156,926.40 × 69,443.20
  4. Step 4: Simplify right side
    104,617.60x = 10,897,471,380.48
  5. Step 5: Solve for x
    x = 10,897,471,380.48/104,617.60
  6. Step 6: Final answer
    x = 104,164.80

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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.