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Finding the Fourth Proportional to 185,817.60, 256,428.24 and 100,934.58

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Solution

The fourth proportional to 185,817.60, 256,428.24 and 100,934.58 is: 139,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,817.60 : 256,428.24 = 100,934.58 : x
  2. Step 2: Convert to fraction form
    185,817.60/256,428.24 = 100,934.58/x
  3. Step 3: Cross multiply
    185,817.60x = 256,428.24 × 100,934.58
  4. Step 4: Simplify right side
    185,817.60x = 25,882,476,704.54
  5. Step 5: Solve for x
    x = 25,882,476,704.54/185,817.60
  6. Step 6: Final answer
    x = 139,289.69

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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.