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Finding the Fourth Proportional to 185,539.44, 256,042.44 and 100,655.76

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Solution

The fourth proportional to 185,539.44, 256,042.44 and 100,655.76 is: 138,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,539.44 : 256,042.44 = 100,655.76 : x
  2. Step 2: Convert to fraction form
    185,539.44/256,042.44 = 100,655.76/x
  3. Step 3: Cross multiply
    185,539.44x = 256,042.44 × 100,655.76
  4. Step 4: Simplify right side
    185,539.44x = 25,772,146,390.45
  5. Step 5: Solve for x
    x = 25,772,146,390.45/185,539.44
  6. Step 6: Final answer
    x = 138,903.87

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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.