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Finding the Fourth Proportional to 169,940.12, 254,761.14 and 64,689.08

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Solution

The fourth proportional to 169,940.12, 254,761.14 and 64,689.08 is: 96,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,940.12 : 254,761.14 = 64,689.08 : x
  2. Step 2: Convert to fraction form
    169,940.12/254,761.14 = 64,689.08/x
  3. Step 3: Cross multiply
    169,940.12x = 254,761.14 × 64,689.08
  4. Step 4: Simplify right side
    169,940.12x = 16,480,263,766.35
  5. Step 5: Solve for x
    x = 16,480,263,766.35/169,940.12
  6. Step 6: Final answer
    x = 96,976.89

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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.