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Finding the Fourth Proportional to 293,886.20, 440,829.30 and 153,687.80

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Solution

The fourth proportional to 293,886.20, 440,829.30 and 153,687.80 is: 230,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,886.20 : 440,829.30 = 153,687.80 : x
  2. Step 2: Convert to fraction form
    293,886.20/440,829.30 = 153,687.80/x
  3. Step 3: Cross multiply
    293,886.20x = 440,829.30 × 153,687.80
  4. Step 4: Simplify right side
    293,886.20x = 67,750,085,292.54
  5. Step 5: Solve for x
    x = 67,750,085,292.54/293,886.20
  6. Step 6: Final answer
    x = 230,531.70

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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.