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Finding the Fourth Proportional to 169,999.61, 255,036.09 and 51,680.48

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Solution

The fourth proportional to 169,999.61, 255,036.09 and 51,680.48 is: 77,531.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,999.61 : 255,036.09 = 51,680.48 : x
  2. Step 2: Convert to fraction form
    169,999.61/255,036.09 = 51,680.48/x
  3. Step 3: Cross multiply
    169,999.61x = 255,036.09 × 51,680.48
  4. Step 4: Simplify right side
    169,999.61x = 13,180,387,548.52
  5. Step 5: Solve for x
    x = 13,180,387,548.52/169,999.61
  6. Step 6: Final answer
    x = 77,531.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.