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Finding the Fourth Proportional to 201,702.15, 302,553.23 and 127,052.55

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Solution

The fourth proportional to 201,702.15, 302,553.23 and 127,052.55 is: 190,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,702.15 : 302,553.23 = 127,052.55 : x
  2. Step 2: Convert to fraction form
    201,702.15/302,553.23 = 127,052.55/x
  3. Step 3: Cross multiply
    201,702.15x = 302,553.23 × 127,052.55
  4. Step 4: Simplify right side
    201,702.15x = 38,440,159,382.24
  5. Step 5: Solve for x
    x = 38,440,159,382.24/201,702.15
  6. Step 6: Final answer
    x = 190,578.83

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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.