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Finding the Fourth Proportional to 185,649.81, 256,197.03 and 100,766.91

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Solution

The fourth proportional to 185,649.81, 256,197.03 and 100,766.91 is: 139,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,649.81 : 256,197.03 = 100,766.91 : x
  2. Step 2: Convert to fraction form
    185,649.81/256,197.03 = 100,766.91/x
  3. Step 3: Cross multiply
    185,649.81x = 256,197.03 × 100,766.91
  4. Step 4: Simplify right side
    185,649.81x = 25,816,183,064.28
  5. Step 5: Solve for x
    x = 25,816,183,064.28/185,649.81
  6. Step 6: Final answer
    x = 139,058.49

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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.