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Finding the Fourth Proportional to 124,773.40, 187,168.20 and 65,724.40

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Solution

The fourth proportional to 124,773.40, 187,168.20 and 65,724.40 is: 98,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,773.40 : 187,168.20 = 65,724.40 : x
  2. Step 2: Convert to fraction form
    124,773.40/187,168.20 = 65,724.40/x
  3. Step 3: Cross multiply
    124,773.40x = 187,168.20 × 65,724.40
  4. Step 4: Simplify right side
    124,773.40x = 12,301,517,644.08
  5. Step 5: Solve for x
    x = 12,301,517,644.08/124,773.40
  6. Step 6: Final answer
    x = 98,590.87

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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.