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Finding the Fourth Proportional to 169,695.38, 233,987.70 and 108,360.92

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Solution

The fourth proportional to 169,695.38, 233,987.70 and 108,360.92 is: 149,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,695.38 : 233,987.70 = 108,360.92 : x
  2. Step 2: Convert to fraction form
    169,695.38/233,987.70 = 108,360.92/x
  3. Step 3: Cross multiply
    169,695.38x = 233,987.70 × 108,360.92
  4. Step 4: Simplify right side
    169,695.38x = 25,355,121,270.75
  5. Step 5: Solve for x
    x = 25,355,121,270.75/169,695.38
  6. Step 6: Final answer
    x = 149,415.51

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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.