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Finding the Fourth Proportional to 70,442.76, 97,213.26 and 38,613.66

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Solution

The fourth proportional to 70,442.76, 97,213.26 and 38,613.66 is: 53,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,442.76 : 97,213.26 = 38,613.66 : x
  2. Step 2: Convert to fraction form
    70,442.76/97,213.26 = 38,613.66/x
  3. Step 3: Cross multiply
    70,442.76x = 97,213.26 × 38,613.66
  4. Step 4: Simplify right side
    70,442.76x = 3,753,759,769.13
  5. Step 5: Solve for x
    x = 3,753,759,769.13/70,442.76
  6. Step 6: Final answer
    x = 53,288.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.