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Finding the Fourth Proportional to 185,616.84, 256,149.90 and 100,732.08

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Solution

The fourth proportional to 185,616.84, 256,149.90 and 100,732.08 is: 139,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,616.84 : 256,149.90 = 100,732.08 : x
  2. Step 2: Convert to fraction form
    185,616.84/256,149.90 = 100,732.08/x
  3. Step 3: Cross multiply
    185,616.84x = 256,149.90 × 100,732.08
  4. Step 4: Simplify right side
    185,616.84x = 25,802,512,218.79
  5. Step 5: Solve for x
    x = 25,802,512,218.79/185,616.84
  6. Step 6: Final answer
    x = 139,009.54

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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.