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Finding the Fourth Proportional to 70,208.96, 96,889.91 and 38,377.86

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Solution

The fourth proportional to 70,208.96, 96,889.91 and 38,377.86 is: 52,962.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,208.96 : 96,889.91 = 38,377.86 : x
  2. Step 2: Convert to fraction form
    70,208.96/96,889.91 = 38,377.86/x
  3. Step 3: Cross multiply
    70,208.96x = 96,889.91 × 38,377.86
  4. Step 4: Simplify right side
    70,208.96x = 3,718,427,689.33
  5. Step 5: Solve for x
    x = 3,718,427,689.33/70,208.96
  6. Step 6: Final answer
    x = 52,962.29

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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.