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Finding the Fourth Proportional to 186,753.78, 257,722.08 and 101,872.62

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Solution

The fourth proportional to 186,753.78, 257,722.08 and 101,872.62 is: 140,585.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,753.78 : 257,722.08 = 101,872.62 : x
  2. Step 2: Convert to fraction form
    186,753.78/257,722.08 = 101,872.62/x
  3. Step 3: Cross multiply
    186,753.78x = 257,722.08 × 101,872.62
  4. Step 4: Simplify right side
    186,753.78x = 26,254,823,521.45
  5. Step 5: Solve for x
    x = 26,254,823,521.45/186,753.78
  6. Step 6: Final answer
    x = 140,585.23

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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.