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Finding the Fourth Proportional to 121,073.32, 181,493.34 and 37,947.88

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Solution

The fourth proportional to 121,073.32, 181,493.34 and 37,947.88 is: 56,885.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,073.32 : 181,493.34 = 37,947.88 : x
  2. Step 2: Convert to fraction form
    121,073.32/181,493.34 = 37,947.88/x
  3. Step 3: Cross multiply
    121,073.32x = 181,493.34 × 37,947.88
  4. Step 4: Simplify right side
    121,073.32x = 6,887,287,487.12
  5. Step 5: Solve for x
    x = 6,887,287,487.12/121,073.32
  6. Step 6: Final answer
    x = 56,885.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.