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Finding the Fourth Proportional to 127,595.57, 176,081.67 and 79,179.48

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Solution

The fourth proportional to 127,595.57, 176,081.67 and 79,179.48 is: 109,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,595.57 : 176,081.67 = 79,179.48 : x
  2. Step 2: Convert to fraction form
    127,595.57/176,081.67 = 79,179.48/x
  3. Step 3: Cross multiply
    127,595.57x = 176,081.67 × 79,179.48
  4. Step 4: Simplify right side
    127,595.57x = 13,942,055,068.13
  5. Step 5: Solve for x
    x = 13,942,055,068.13/127,595.57
  6. Step 6: Final answer
    x = 109,267.55

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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.