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Finding the Fourth Proportional to 171,279.68, 256,945.50 and 124,249.66

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Solution

The fourth proportional to 171,279.68, 256,945.50 and 124,249.66 is: 186,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,279.68 : 256,945.50 = 124,249.66 : x
  2. Step 2: Convert to fraction form
    171,279.68/256,945.50 = 124,249.66/x
  3. Step 3: Cross multiply
    171,279.68x = 256,945.50 × 124,249.66
  4. Step 4: Simplify right side
    171,279.68x = 31,925,391,816.48
  5. Step 5: Solve for x
    x = 31,925,391,816.48/171,279.68
  6. Step 6: Final answer
    x = 186,393.34

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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.