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Finding the Fourth Proportional to 164,591.20, 246,886.80 and 155,405.80

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Solution

The fourth proportional to 164,591.20, 246,886.80 and 155,405.80 is: 233,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,591.20 : 246,886.80 = 155,405.80 : x
  2. Step 2: Convert to fraction form
    164,591.20/246,886.80 = 155,405.80/x
  3. Step 3: Cross multiply
    164,591.20x = 246,886.80 × 155,405.80
  4. Step 4: Simplify right side
    164,591.20x = 38,367,640,663.44
  5. Step 5: Solve for x
    x = 38,367,640,663.44/164,591.20
  6. Step 6: Final answer
    x = 233,108.70

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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.