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Finding the Fourth Proportional to 70,044.48, 96,661.32 and 38,213.31

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Solution

The fourth proportional to 70,044.48, 96,661.32 and 38,213.31 is: 52,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,044.48 : 96,661.32 = 38,213.31 : x
  2. Step 2: Convert to fraction form
    70,044.48/96,661.32 = 38,213.31/x
  3. Step 3: Cross multiply
    70,044.48x = 96,661.32 × 38,213.31
  4. Step 4: Simplify right side
    70,044.48x = 3,693,748,986.17
  5. Step 5: Solve for x
    x = 3,693,748,986.17/70,044.48
  6. Step 6: Final answer
    x = 52,734.33

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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.