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Finding the Fourth Proportional to 67,765.48, 101,711.08 and 48,809.66

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Solution

The fourth proportional to 67,765.48, 101,711.08 and 48,809.66 is: 73,259.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,765.48 : 101,711.08 = 48,809.66 : x
  2. Step 2: Convert to fraction form
    67,765.48/101,711.08 = 48,809.66/x
  3. Step 3: Cross multiply
    67,765.48x = 101,711.08 × 48,809.66
  4. Step 4: Simplify right side
    67,765.48x = 4,964,482,785.49
  5. Step 5: Solve for x
    x = 4,964,482,785.49/67,765.48
  6. Step 6: Final answer
    x = 73,259.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.