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Finding the Fourth Proportional to 121,676.52, 182,364.10 and 68,926.08

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Solution

The fourth proportional to 121,676.52, 182,364.10 and 68,926.08 is: 103,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,676.52 : 182,364.10 = 68,926.08 : x
  2. Step 2: Convert to fraction form
    121,676.52/182,364.10 = 68,926.08/x
  3. Step 3: Cross multiply
    121,676.52x = 182,364.10 × 68,926.08
  4. Step 4: Simplify right side
    121,676.52x = 12,569,642,545.73
  5. Step 5: Solve for x
    x = 12,569,642,545.73/121,676.52
  6. Step 6: Final answer
    x = 103,303.76

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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.