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Finding the Fourth Proportional to 85,169.52, 117,539.22 and 47,443.74

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Solution

The fourth proportional to 85,169.52, 117,539.22 and 47,443.74 is: 65,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,169.52 : 117,539.22 = 47,443.74 : x
  2. Step 2: Convert to fraction form
    85,169.52/117,539.22 = 47,443.74/x
  3. Step 3: Cross multiply
    85,169.52x = 117,539.22 × 47,443.74
  4. Step 4: Simplify right side
    85,169.52x = 5,576,500,193.48
  5. Step 5: Solve for x
    x = 5,576,500,193.48/85,169.52
  6. Step 6: Final answer
    x = 65,475.30

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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.