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Finding the Fourth Proportional to 344,809.69, 517,209.33 and 155,136.11

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Solution

The fourth proportional to 344,809.69, 517,209.33 and 155,136.11 is: 232,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,809.69 : 517,209.33 = 155,136.11 : x
  2. Step 2: Convert to fraction form
    344,809.69/517,209.33 = 155,136.11/x
  3. Step 3: Cross multiply
    344,809.69x = 517,209.33 × 155,136.11
  4. Step 4: Simplify right side
    344,809.69x = 80,237,840,150.18
  5. Step 5: Solve for x
    x = 80,237,840,150.18/344,809.69
  6. Step 6: Final answer
    x = 232,701.82

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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.