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Finding the Fourth Proportional to 127,204.62, 175,618.53 and 79,522.56

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Solution

The fourth proportional to 127,204.62, 175,618.53 and 79,522.56 is: 109,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,204.62 : 175,618.53 = 79,522.56 : x
  2. Step 2: Convert to fraction form
    127,204.62/175,618.53 = 79,522.56/x
  3. Step 3: Cross multiply
    127,204.62x = 175,618.53 × 79,522.56
  4. Step 4: Simplify right side
    127,204.62x = 13,965,635,089.04
  5. Step 5: Solve for x
    x = 13,965,635,089.04/127,204.62
  6. Step 6: Final answer
    x = 109,788.74

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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.