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Finding the Fourth Proportional to 185,649.82, 256,197.01 and 100,766.90

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Solution

The fourth proportional to 185,649.82, 256,197.01 and 100,766.90 is: 139,058.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,649.82 : 256,197.01 = 100,766.90 : x
  2. Step 2: Convert to fraction form
    185,649.82/256,197.01 = 100,766.90/x
  3. Step 3: Cross multiply
    185,649.82x = 256,197.01 × 100,766.90
  4. Step 4: Simplify right side
    185,649.82x = 25,816,178,486.97
  5. Step 5: Solve for x
    x = 25,816,178,486.97/185,649.82
  6. Step 6: Final answer
    x = 139,058.46

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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.