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Finding the Fourth Proportional to 185,649.96, 256,197.18 and 100,767

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Solution

The fourth proportional to 185,649.96, 256,197.18 and 100,767 is: 139,058.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,649.96 : 256,197.18 = 100,767 : x
  2. Step 2: Convert to fraction form
    185,649.96/256,197.18 = 100,767/x
  3. Step 3: Cross multiply
    185,649.96x = 256,197.18 × 100,767
  4. Step 4: Simplify right side
    185,649.96x = 25,816,221,237.06
  5. Step 5: Solve for x
    x = 25,816,221,237.06/185,649.96
  6. Step 6: Final answer
    x = 139,058.59

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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.