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Finding the Fourth Proportional to 127,695.92, 176,064.23 and 79,866.23

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Solution

The fourth proportional to 127,695.92, 176,064.23 and 79,866.23 is: 110,117.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,695.92 : 176,064.23 = 79,866.23 : x
  2. Step 2: Convert to fraction form
    127,695.92/176,064.23 = 79,866.23/x
  3. Step 3: Cross multiply
    127,695.92x = 176,064.23 × 79,866.23
  4. Step 4: Simplify right side
    127,695.92x = 14,061,585,888.62
  5. Step 5: Solve for x
    x = 14,061,585,888.62/127,695.92
  6. Step 6: Final answer
    x = 110,117.74

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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.