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Finding the Fourth Proportional to 107,463.60, 148,257.32 and 62,133.28

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Solution

The fourth proportional to 107,463.60, 148,257.32 and 62,133.28 is: 85,719.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,463.60 : 148,257.32 = 62,133.28 : x
  2. Step 2: Convert to fraction form
    107,463.60/148,257.32 = 62,133.28/x
  3. Step 3: Cross multiply
    107,463.60x = 148,257.32 × 62,133.28
  4. Step 4: Simplify right side
    107,463.60x = 9,211,713,575.61
  5. Step 5: Solve for x
    x = 9,211,713,575.61/107,463.60
  6. Step 6: Final answer
    x = 85,719.38

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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.