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Finding the Fourth Proportional to 124,396.88, 171,672.36 and 70,691.04

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Solution

The fourth proportional to 124,396.88, 171,672.36 and 70,691.04 is: 97,556.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,396.88 : 171,672.36 = 70,691.04 : x
  2. Step 2: Convert to fraction form
    124,396.88/171,672.36 = 70,691.04/x
  3. Step 3: Cross multiply
    124,396.88x = 171,672.36 × 70,691.04
  4. Step 4: Simplify right side
    124,396.88x = 12,135,697,667.65
  5. Step 5: Solve for x
    x = 12,135,697,667.65/124,396.88
  6. Step 6: Final answer
    x = 97,556.29

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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.