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Finding the Fourth Proportional to 73,469.81, 101,273.18 and 47,931.11

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Solution

The fourth proportional to 73,469.81, 101,273.18 and 47,931.11 is: 66,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,469.81 : 101,273.18 = 47,931.11 : x
  2. Step 2: Convert to fraction form
    73,469.81/101,273.18 = 47,931.11/x
  3. Step 3: Cross multiply
    73,469.81x = 101,273.18 × 47,931.11
  4. Step 4: Simplify right side
    73,469.81x = 4,854,135,184.61
  5. Step 5: Solve for x
    x = 4,854,135,184.61/73,469.81
  6. Step 6: Final answer
    x = 66,069.80

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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.