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Finding the Fourth Proportional to 169,633.94, 254,456.51 and 85,347.96

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Solution

The fourth proportional to 169,633.94, 254,456.51 and 85,347.96 is: 128,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,633.94 : 254,456.51 = 85,347.96 : x
  2. Step 2: Convert to fraction form
    169,633.94/254,456.51 = 85,347.96/x
  3. Step 3: Cross multiply
    169,633.94x = 254,456.51 × 85,347.96
  4. Step 4: Simplify right side
    169,633.94x = 21,717,343,610.48
  5. Step 5: Solve for x
    x = 21,717,343,610.48/169,633.94
  6. Step 6: Final answer
    x = 128,024.76

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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.