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Finding the Fourth Proportional to 73,729.52, 101,715.20 and 48,191.52

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Solution

The fourth proportional to 73,729.52, 101,715.20 and 48,191.52 is: 66,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,729.52 : 101,715.20 = 48,191.52 : x
  2. Step 2: Convert to fraction form
    73,729.52/101,715.20 = 48,191.52/x
  3. Step 3: Cross multiply
    73,729.52x = 101,715.20 × 48,191.52
  4. Step 4: Simplify right side
    73,729.52x = 4,901,810,095.10
  5. Step 5: Solve for x
    x = 4,901,810,095.10/73,729.52
  6. Step 6: Final answer
    x = 66,483.68

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1.5x scale

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.