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Finding the Fourth Proportional to 70,722.38, 97,642.96 and 43,904.29

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Solution

The fourth proportional to 70,722.38, 97,642.96 and 43,904.29 is: 60,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,722.38 : 97,642.96 = 43,904.29 : x
  2. Step 2: Convert to fraction form
    70,722.38/97,642.96 = 43,904.29/x
  3. Step 3: Cross multiply
    70,722.38x = 97,642.96 × 43,904.29
  4. Step 4: Simplify right side
    70,722.38x = 4,286,944,612.78
  5. Step 5: Solve for x
    x = 4,286,944,612.78/70,722.38
  6. Step 6: Final answer
    x = 60,616.52

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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.