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Finding the Fourth Proportional to 100,713.60, 151,091.60 and 29,630.28

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Solution

The fourth proportional to 100,713.60, 151,091.60 and 29,630.28 is: 44,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,713.60 : 151,091.60 = 29,630.28 : x
  2. Step 2: Convert to fraction form
    100,713.60/151,091.60 = 29,630.28/x
  3. Step 3: Cross multiply
    100,713.60x = 151,091.60 × 29,630.28
  4. Step 4: Simplify right side
    100,713.60x = 4,476,886,265.50
  5. Step 5: Solve for x
    x = 4,476,886,265.50/100,713.60
  6. Step 6: Final answer
    x = 44,451.66

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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.