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Finding the Fourth Proportional to 124,122.80, 171,290.92 and 67,534.64

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Solution

The fourth proportional to 124,122.80, 171,290.92 and 67,534.64 is: 93,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,122.80 : 171,290.92 = 67,534.64 : x
  2. Step 2: Convert to fraction form
    124,122.80/171,290.92 = 67,534.64/x
  3. Step 3: Cross multiply
    124,122.80x = 171,290.92 × 67,534.64
  4. Step 4: Simplify right side
    124,122.80x = 11,568,070,617.47
  5. Step 5: Solve for x
    x = 11,568,070,617.47/124,122.80
  6. Step 6: Final answer
    x = 93,198.60

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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.