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Finding the Fourth Proportional to 48,364.30, 72,468.69 and 40,588.30

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Solution

The fourth proportional to 48,364.30, 72,468.69 and 40,588.30 is: 60,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,364.30 : 72,468.69 = 40,588.30 : x
  2. Step 2: Convert to fraction form
    48,364.30/72,468.69 = 40,588.30/x
  3. Step 3: Cross multiply
    48,364.30x = 72,468.69 × 40,588.30
  4. Step 4: Simplify right side
    48,364.30x = 2,941,380,930.33
  5. Step 5: Solve for x
    x = 2,941,380,930.33/48,364.30
  6. Step 6: Final answer
    x = 60,817.19

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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.