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Finding the Fourth Proportional to 107,767.57, 148,719.42 and 62,454.28

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Solution

The fourth proportional to 107,767.57, 148,719.42 and 62,454.28 is: 86,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,767.57 : 148,719.42 = 62,454.28 : x
  2. Step 2: Convert to fraction form
    107,767.57/148,719.42 = 62,454.28/x
  3. Step 3: Cross multiply
    107,767.57x = 148,719.42 × 62,454.28
  4. Step 4: Simplify right side
    107,767.57x = 9,288,164,298.12
  5. Step 5: Solve for x
    x = 9,288,164,298.12/107,767.57
  6. Step 6: Final answer
    x = 86,187.01

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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.