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Finding the Fourth Proportional to 124,346.88, 171,486.72 and 79,626.24

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Solution

The fourth proportional to 124,346.88, 171,486.72 and 79,626.24 is: 109,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,346.88 : 171,486.72 = 79,626.24 : x
  2. Step 2: Convert to fraction form
    124,346.88/171,486.72 = 79,626.24/x
  3. Step 3: Cross multiply
    124,346.88x = 171,486.72 × 79,626.24
  4. Step 4: Simplify right side
    124,346.88x = 13,654,842,723.53
  5. Step 5: Solve for x
    x = 13,654,842,723.53/124,346.88
  6. Step 6: Final answer
    x = 109,812.51

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1.5x scale

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.