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Finding the Fourth Proportional to 185,481.84, 255,681.89 and 113,728.80

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Solution

The fourth proportional to 185,481.84, 255,681.89 and 113,728.80 is: 156,772.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,481.84 : 255,681.89 = 113,728.80 : x
  2. Step 2: Convert to fraction form
    185,481.84/255,681.89 = 113,728.80/x
  3. Step 3: Cross multiply
    185,481.84x = 255,681.89 × 113,728.80
  4. Step 4: Simplify right side
    185,481.84x = 29,078,394,531.43
  5. Step 5: Solve for x
    x = 29,078,394,531.43/185,481.84
  6. Step 6: Final answer
    x = 156,772.19

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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.