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Finding the Fourth Proportional to 121,479.66, 182,272.13 and 65,254.17

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Solution

The fourth proportional to 121,479.66, 182,272.13 and 65,254.17 is: 97,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,479.66 : 182,272.13 = 65,254.17 : x
  2. Step 2: Convert to fraction form
    121,479.66/182,272.13 = 65,254.17/x
  3. Step 3: Cross multiply
    121,479.66x = 182,272.13 × 65,254.17
  4. Step 4: Simplify right side
    121,479.66x = 11,894,016,231.01
  5. Step 5: Solve for x
    x = 11,894,016,231.01/121,479.66
  6. Step 6: Final answer
    x = 97,909.53

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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.