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Finding the Fourth Proportional to 185,866.67, 256,499.16 and 100,983.80

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Solution

The fourth proportional to 185,866.67, 256,499.16 and 100,983.80 is: 139,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,866.67 : 256,499.16 = 100,983.80 : x
  2. Step 2: Convert to fraction form
    185,866.67/256,499.16 = 100,983.80/x
  3. Step 3: Cross multiply
    185,866.67x = 256,499.16 × 100,983.80
  4. Step 4: Simplify right side
    185,866.67x = 25,902,259,873.61
  5. Step 5: Solve for x
    x = 25,902,259,873.61/185,866.67
  6. Step 6: Final answer
    x = 139,359.36

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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.