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Finding the Fourth Proportional to 185,579.92, 256,101.96 and 100,697.68

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Solution

The fourth proportional to 185,579.92, 256,101.96 and 100,697.68 is: 138,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,579.92 : 256,101.96 = 100,697.68 : x
  2. Step 2: Convert to fraction form
    185,579.92/256,101.96 = 100,697.68/x
  3. Step 3: Cross multiply
    185,579.92x = 256,101.96 × 100,697.68
  4. Step 4: Simplify right side
    185,579.92x = 25,788,873,215.45
  5. Step 5: Solve for x
    x = 25,788,873,215.45/185,579.92
  6. Step 6: Final answer
    x = 138,963.70

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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.