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Finding the Fourth Proportional to 113,464.44, 156,581.10 and 65,720.52

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Solution

The fourth proportional to 113,464.44, 156,581.10 and 65,720.52 is: 90,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,464.44 : 156,581.10 = 65,720.52 : x
  2. Step 2: Convert to fraction form
    113,464.44/156,581.10 = 65,720.52/x
  3. Step 3: Cross multiply
    113,464.44x = 156,581.10 × 65,720.52
  4. Step 4: Simplify right side
    113,464.44x = 10,290,591,314.17
  5. Step 5: Solve for x
    x = 10,290,591,314.17/113,464.44
  6. Step 6: Final answer
    x = 90,694.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.