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Finding the Fourth Proportional to 88,276.50, 121,821.57 and 48,532.50

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Solution

The fourth proportional to 88,276.50, 121,821.57 and 48,532.50 is: 66,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,276.50 : 121,821.57 = 48,532.50 : x
  2. Step 2: Convert to fraction form
    88,276.50/121,821.57 = 48,532.50/x
  3. Step 3: Cross multiply
    88,276.50x = 121,821.57 × 48,532.50
  4. Step 4: Simplify right side
    88,276.50x = 5,912,305,346.03
  5. Step 5: Solve for x
    x = 5,912,305,346.03/88,276.50
  6. Step 6: Final answer
    x = 66,974.85

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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.