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Finding the Fourth Proportional to 124,568.40, 186,917.40 and 54,454.80

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Solution

The fourth proportional to 124,568.40, 186,917.40 and 54,454.80 is: 81,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,568.40 : 186,917.40 = 54,454.80 : x
  2. Step 2: Convert to fraction form
    124,568.40/186,917.40 = 54,454.80/x
  3. Step 3: Cross multiply
    124,568.40x = 186,917.40 × 54,454.80
  4. Step 4: Simplify right side
    124,568.40x = 10,178,549,633.52
  5. Step 5: Solve for x
    x = 10,178,549,633.52/124,568.40
  6. Step 6: Final answer
    x = 81,710.53

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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.