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Finding the Fourth Proportional to 185,711.40, 256,282.44 and 100,828.44

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Solution

The fourth proportional to 185,711.40, 256,282.44 and 100,828.44 is: 139,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,711.40 : 256,282.44 = 100,828.44 : x
  2. Step 2: Convert to fraction form
    185,711.40/256,282.44 = 100,828.44/x
  3. Step 3: Cross multiply
    185,711.40x = 256,282.44 × 100,828.44
  4. Step 4: Simplify right side
    185,711.40x = 25,840,558,624.59
  5. Step 5: Solve for x
    x = 25,840,558,624.59/185,711.40
  6. Step 6: Final answer
    x = 139,143.63

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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.