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Finding the Fourth Proportional to 72,549.95, 100,160.57 and 48,344.52

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Solution

The fourth proportional to 72,549.95, 100,160.57 and 48,344.52 is: 66,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,549.95 : 100,160.57 = 48,344.52 : x
  2. Step 2: Convert to fraction form
    72,549.95/100,160.57 = 48,344.52/x
  3. Step 3: Cross multiply
    72,549.95x = 100,160.57 × 48,344.52
  4. Step 4: Simplify right side
    72,549.95x = 4,842,214,800.44
  5. Step 5: Solve for x
    x = 4,842,214,800.44/72,549.95
  6. Step 6: Final answer
    x = 66,743.18

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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.