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Finding the Fourth Proportional to 553,891.92, 830,837.88 and 133,167.80

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Solution

The fourth proportional to 553,891.92, 830,837.88 and 133,167.80 is: 199,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,891.92 : 830,837.88 = 133,167.80 : x
  2. Step 2: Convert to fraction form
    553,891.92/830,837.88 = 133,167.80/x
  3. Step 3: Cross multiply
    553,891.92x = 830,837.88 × 133,167.80
  4. Step 4: Simplify right side
    553,891.92x = 110,640,850,414.43
  5. Step 5: Solve for x
    x = 110,640,850,414.43/553,891.92
  6. Step 6: Final answer
    x = 199,751.70

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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.