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Finding the Fourth Proportional to 185,646.31, 256,192.20 and 100,763.41

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Solution

The fourth proportional to 185,646.31, 256,192.20 and 100,763.41 is: 139,053.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,646.31 : 256,192.20 = 100,763.41 : x
  2. Step 2: Convert to fraction form
    185,646.31/256,192.20 = 100,763.41/x
  3. Step 3: Cross multiply
    185,646.31x = 256,192.20 × 100,763.41
  4. Step 4: Simplify right side
    185,646.31x = 25,814,799,687.40
  5. Step 5: Solve for x
    x = 25,814,799,687.40/185,646.31
  6. Step 6: Final answer
    x = 139,053.66

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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.