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Finding the Fourth Proportional to 78,568.16, 108,550.90 and 54,800.93

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Solution

The fourth proportional to 78,568.16, 108,550.90 and 54,800.93 is: 75,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,568.16 : 108,550.90 = 54,800.93 : x
  2. Step 2: Convert to fraction form
    78,568.16/108,550.90 = 54,800.93/x
  3. Step 3: Cross multiply
    78,568.16x = 108,550.90 × 54,800.93
  4. Step 4: Simplify right side
    78,568.16x = 5,948,690,612.22
  5. Step 5: Solve for x
    x = 5,948,690,612.22/78,568.16
  6. Step 6: Final answer
    x = 75,713.76

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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.