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Finding the Fourth Proportional to 104,431.64, 156,646.50 and 25,546.20

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Solution

The fourth proportional to 104,431.64, 156,646.50 and 25,546.20 is: 38,319.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,431.64 : 156,646.50 = 25,546.20 : x
  2. Step 2: Convert to fraction form
    104,431.64/156,646.50 = 25,546.20/x
  3. Step 3: Cross multiply
    104,431.64x = 156,646.50 × 25,546.20
  4. Step 4: Simplify right side
    104,431.64x = 4,001,722,818.30
  5. Step 5: Solve for x
    x = 4,001,722,818.30/104,431.64
  6. Step 6: Final answer
    x = 38,319.07

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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.