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Finding the Fourth Proportional to 185,600.60, 256,129.49 and 100,717.64

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Solution

The fourth proportional to 185,600.60, 256,129.49 and 100,717.64 is: 138,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,600.60 : 256,129.49 = 100,717.64 : x
  2. Step 2: Convert to fraction form
    185,600.60/256,129.49 = 100,717.64/x
  3. Step 3: Cross multiply
    185,600.60x = 256,129.49 × 100,717.64
  4. Step 4: Simplify right side
    185,600.60x = 25,796,756,738.35
  5. Step 5: Solve for x
    x = 25,796,756,738.35/185,600.60
  6. Step 6: Final answer
    x = 138,990.70

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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.