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Finding the Fourth Proportional to 185,778.41, 256,480.47 and 122,300.73

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Solution

The fourth proportional to 185,778.41, 256,480.47 and 122,300.73 is: 168,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,778.41 : 256,480.47 = 122,300.73 : x
  2. Step 2: Convert to fraction form
    185,778.41/256,480.47 = 122,300.73/x
  3. Step 3: Cross multiply
    185,778.41x = 256,480.47 × 122,300.73
  4. Step 4: Simplify right side
    185,778.41x = 31,367,748,711.74
  5. Step 5: Solve for x
    x = 31,367,748,711.74/185,778.41
  6. Step 6: Final answer
    x = 168,844.97

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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.