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Finding the Fourth Proportional to 369,915.77, 554,540.42 and 133,091.82

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Solution

The fourth proportional to 369,915.77, 554,540.42 and 133,091.82 is: 199,517.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,915.77 : 554,540.42 = 133,091.82 : x
  2. Step 2: Convert to fraction form
    369,915.77/554,540.42 = 133,091.82/x
  3. Step 3: Cross multiply
    369,915.77x = 554,540.42 × 133,091.82
  4. Step 4: Simplify right side
    369,915.77x = 73,804,793,095.91
  5. Step 5: Solve for x
    x = 73,804,793,095.91/369,915.77
  6. Step 6: Final answer
    x = 199,517.84

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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.