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Finding the Fourth Proportional to 73,272.60, 101,110.68 and 49,431.60

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Solution

The fourth proportional to 73,272.60, 101,110.68 and 49,431.60 is: 68,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,272.60 : 101,110.68 = 49,431.60 : x
  2. Step 2: Convert to fraction form
    73,272.60/101,110.68 = 49,431.60/x
  3. Step 3: Cross multiply
    73,272.60x = 101,110.68 × 49,431.60
  4. Step 4: Simplify right side
    73,272.60x = 4,998,062,689.49
  5. Step 5: Solve for x
    x = 4,998,062,689.49/73,272.60
  6. Step 6: Final answer
    x = 68,211.89

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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.