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Finding the Fourth Proportional to 66,701.96, 100,081.04 and 29,242.72

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Solution

The fourth proportional to 66,701.96, 100,081.04 and 29,242.72 is: 43,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,701.96 : 100,081.04 = 29,242.72 : x
  2. Step 2: Convert to fraction form
    66,701.96/100,081.04 = 29,242.72/x
  3. Step 3: Cross multiply
    66,701.96x = 100,081.04 × 29,242.72
  4. Step 4: Simplify right side
    66,701.96x = 2,926,641,830.03
  5. Step 5: Solve for x
    x = 2,926,641,830.03/66,701.96
  6. Step 6: Final answer
    x = 43,876.40

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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.