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Finding the Fourth Proportional to 70,451.69, 97,230.05 and 40,241.52

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Solution

The fourth proportional to 70,451.69, 97,230.05 and 40,241.52 is: 55,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,451.69 : 97,230.05 = 40,241.52 : x
  2. Step 2: Convert to fraction form
    70,451.69/97,230.05 = 40,241.52/x
  3. Step 3: Cross multiply
    70,451.69x = 97,230.05 × 40,241.52
  4. Step 4: Simplify right side
    70,451.69x = 3,912,685,001.68
  5. Step 5: Solve for x
    x = 3,912,685,001.68/70,451.69
  6. Step 6: Final answer
    x = 55,537.13

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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.