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Finding the Fourth Proportional to 186,726.72, 257,682.72 and 101,843.52

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Solution

The fourth proportional to 186,726.72, 257,682.72 and 101,843.52 is: 140,543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,726.72 : 257,682.72 = 101,843.52 : x
  2. Step 2: Convert to fraction form
    186,726.72/257,682.72 = 101,843.52/x
  3. Step 3: Cross multiply
    186,726.72x = 257,682.72 × 101,843.52
  4. Step 4: Simplify right side
    186,726.72x = 26,243,315,247.97
  5. Step 5: Solve for x
    x = 26,243,315,247.97/186,726.72
  6. Step 6: Final answer
    x = 140,543.97

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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.