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Finding the Fourth Proportional to 185,243.01, 255,633.75 and 100,359.87

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Solution

The fourth proportional to 185,243.01, 255,633.75 and 100,359.87 is: 138,495.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,243.01 : 255,633.75 = 100,359.87 : x
  2. Step 2: Convert to fraction form
    185,243.01/255,633.75 = 100,359.87/x
  3. Step 3: Cross multiply
    185,243.01x = 255,633.75 × 100,359.87
  4. Step 4: Simplify right side
    185,243.01x = 25,655,369,917.61
  5. Step 5: Solve for x
    x = 25,655,369,917.61/185,243.01
  6. Step 6: Final answer
    x = 138,495.75

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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.