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Finding the Fourth Proportional to 269,079.52, 371,329.84 and 155,967.84

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Solution

The fourth proportional to 269,079.52, 371,329.84 and 155,967.84 is: 215,235.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,079.52 : 371,329.84 = 155,967.84 : x
  2. Step 2: Convert to fraction form
    269,079.52/371,329.84 = 155,967.84/x
  3. Step 3: Cross multiply
    269,079.52x = 371,329.84 × 155,967.84
  4. Step 4: Simplify right side
    269,079.52x = 57,915,513,072.35
  5. Step 5: Solve for x
    x = 57,915,513,072.35/269,079.52
  6. Step 6: Final answer
    x = 215,235.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.