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Finding the Fourth Proportional to 185,898.61, 256,540.76 and 101,015.65

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Solution

The fourth proportional to 185,898.61, 256,540.76 and 101,015.65 is: 139,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,898.61 : 256,540.76 = 101,015.65 : x
  2. Step 2: Convert to fraction form
    185,898.61/256,540.76 = 101,015.65/x
  3. Step 3: Cross multiply
    185,898.61x = 256,540.76 × 101,015.65
  4. Step 4: Simplify right side
    185,898.61x = 25,914,631,622.89
  5. Step 5: Solve for x
    x = 25,914,631,622.89/185,898.61
  6. Step 6: Final answer
    x = 139,401.97

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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.