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Finding the Fourth Proportional to 240,988.39, 361,136.30 and 135,584.71

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Solution

The fourth proportional to 240,988.39, 361,136.30 and 135,584.71 is: 203,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,988.39 : 361,136.30 = 135,584.71 : x
  2. Step 2: Convert to fraction form
    240,988.39/361,136.30 = 135,584.71/x
  3. Step 3: Cross multiply
    240,988.39x = 361,136.30 × 135,584.71
  4. Step 4: Simplify right side
    240,988.39x = 48,964,558,925.21
  5. Step 5: Solve for x
    x = 48,964,558,925.21/240,988.39
  6. Step 6: Final answer
    x = 203,182.23

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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.