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Finding the Fourth Proportional to 124,613.68, 171,964.20 and 68,026

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Solution

The fourth proportional to 124,613.68, 171,964.20 and 68,026 is: 93,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,613.68 : 171,964.20 = 68,026 : x
  2. Step 2: Convert to fraction form
    124,613.68/171,964.20 = 68,026/x
  3. Step 3: Cross multiply
    124,613.68x = 171,964.20 × 68,026
  4. Step 4: Simplify right side
    124,613.68x = 11,698,036,669.20
  5. Step 5: Solve for x
    x = 11,698,036,669.20/124,613.68
  6. Step 6: Final answer
    x = 93,874.42

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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.