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Finding the Fourth Proportional to 48,513.60, 72,708.30 and 39,158.10

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Solution

The fourth proportional to 48,513.60, 72,708.30 and 39,158.10 is: 58,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,513.60 : 72,708.30 = 39,158.10 : x
  2. Step 2: Convert to fraction form
    48,513.60/72,708.30 = 39,158.10/x
  3. Step 3: Cross multiply
    48,513.60x = 72,708.30 × 39,158.10
  4. Step 4: Simplify right side
    48,513.60x = 2,847,118,882.23
  5. Step 5: Solve for x
    x = 2,847,118,882.23/48,513.60
  6. Step 6: Final answer
    x = 58,687.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.