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Finding the Fourth Proportional to 185,570.52, 256,080.44 and 100,685.76

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Solution

The fourth proportional to 185,570.52, 256,080.44 and 100,685.76 is: 138,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,570.52 : 256,080.44 = 100,685.76 : x
  2. Step 2: Convert to fraction form
    185,570.52/256,080.44 = 100,685.76/x
  3. Step 3: Cross multiply
    185,570.52x = 256,080.44 × 100,685.76
  4. Step 4: Simplify right side
    185,570.52x = 25,783,653,722.53
  5. Step 5: Solve for x
    x = 25,783,653,722.53/185,570.52
  6. Step 6: Final answer
    x = 138,942.62

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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.