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Finding the Fourth Proportional to 100,859.76, 151,279.02 and 44,700.84

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Solution

The fourth proportional to 100,859.76, 151,279.02 and 44,700.84 is: 67,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,859.76 : 151,279.02 = 44,700.84 : x
  2. Step 2: Convert to fraction form
    100,859.76/151,279.02 = 44,700.84/x
  3. Step 3: Cross multiply
    100,859.76x = 151,279.02 × 44,700.84
  4. Step 4: Simplify right side
    100,859.76x = 6,762,299,268.38
  5. Step 5: Solve for x
    x = 6,762,299,268.38/100,859.76
  6. Step 6: Final answer
    x = 67,046.55

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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.