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Finding the Fourth Proportional to 246,209.40, 369,308.70 and 68,711.40

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Solution

The fourth proportional to 246,209.40, 369,308.70 and 68,711.40 is: 103,065.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,209.40 : 369,308.70 = 68,711.40 : x
  2. Step 2: Convert to fraction form
    246,209.40/369,308.70 = 68,711.40/x
  3. Step 3: Cross multiply
    246,209.40x = 369,308.70 × 68,711.40
  4. Step 4: Simplify right side
    246,209.40x = 25,375,717,809.18
  5. Step 5: Solve for x
    x = 25,375,717,809.18/246,209.40
  6. Step 6: Final answer
    x = 103,065.59

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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.