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Finding the Fourth Proportional to 107,807.68, 148,774.72 and 62,494.40

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Solution

The fourth proportional to 107,807.68, 148,774.72 and 62,494.40 is: 86,242.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,807.68 : 148,774.72 = 62,494.40 : x
  2. Step 2: Convert to fraction form
    107,807.68/148,774.72 = 62,494.40/x
  3. Step 3: Cross multiply
    107,807.68x = 148,774.72 × 62,494.40
  4. Step 4: Simplify right side
    107,807.68x = 9,297,586,861.57
  5. Step 5: Solve for x
    x = 9,297,586,861.57/107,807.68
  6. Step 6: Final answer
    x = 86,242.34

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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.