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Finding the Fourth Proportional to 121,863.54, 182,743.02 and 41,909.55

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Solution

The fourth proportional to 121,863.54, 182,743.02 and 41,909.55 is: 62,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863.54 : 182,743.02 = 41,909.55 : x
  2. Step 2: Convert to fraction form
    121,863.54/182,743.02 = 41,909.55/x
  3. Step 3: Cross multiply
    121,863.54x = 182,743.02 × 41,909.55
  4. Step 4: Simplify right side
    121,863.54x = 7,658,677,838.61
  5. Step 5: Solve for x
    x = 7,658,677,838.61/121,863.54
  6. Step 6: Final answer
    x = 62,846.35

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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.