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Finding the Fourth Proportional to 58,086.80, 87,130.20 and 44,948.60

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Solution

The fourth proportional to 58,086.80, 87,130.20 and 44,948.60 is: 67,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,086.80 : 87,130.20 = 44,948.60 : x
  2. Step 2: Convert to fraction form
    58,086.80/87,130.20 = 44,948.60/x
  3. Step 3: Cross multiply
    58,086.80x = 87,130.20 × 44,948.60
  4. Step 4: Simplify right side
    58,086.80x = 3,916,380,507.72
  5. Step 5: Solve for x
    x = 3,916,380,507.72/58,086.80
  6. Step 6: Final answer
    x = 67,422.90

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Why These Related Problems?

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