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Finding the Fourth Proportional to 127,358.98, 175,700.87 and 79,529.29

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Solution

The fourth proportional to 127,358.98, 175,700.87 and 79,529.29 is: 109,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,358.98 : 175,700.87 = 79,529.29 : x
  2. Step 2: Convert to fraction form
    127,358.98/175,700.87 = 79,529.29/x
  3. Step 3: Cross multiply
    127,358.98x = 175,700.87 × 79,529.29
  4. Step 4: Simplify right side
    127,358.98x = 13,973,365,443.48
  5. Step 5: Solve for x
    x = 13,973,365,443.48/127,358.98
  6. Step 6: Final answer
    x = 109,716.37

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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.