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Finding the Fourth Proportional to 185,243.77, 255,636.65 and 100,360.83

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Solution

The fourth proportional to 185,243.77, 255,636.65 and 100,360.83 is: 138,498.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,243.77 : 255,636.65 = 100,360.83 : x
  2. Step 2: Convert to fraction form
    185,243.77/255,636.65 = 100,360.83/x
  3. Step 3: Cross multiply
    185,243.77x = 255,636.65 × 100,360.83
  4. Step 4: Simplify right side
    185,243.77x = 25,655,906,372.42
  5. Step 5: Solve for x
    x = 25,655,906,372.42/185,243.77
  6. Step 6: Final answer
    x = 138,498.08

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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.