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Finding the Fourth Proportional to 115,194.92, 172,887.42 and 89,058.92

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Solution

The fourth proportional to 115,194.92, 172,887.42 and 89,058.92 is: 133,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,194.92 : 172,887.42 = 89,058.92 : x
  2. Step 2: Convert to fraction form
    115,194.92/172,887.42 = 89,058.92/x
  3. Step 3: Cross multiply
    115,194.92x = 172,887.42 × 89,058.92
  4. Step 4: Simplify right side
    115,194.92x = 15,397,166,906.79
  5. Step 5: Solve for x
    x = 15,397,166,906.79/115,194.92
  6. Step 6: Final answer
    x = 133,661.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.