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Finding the Fourth Proportional to 103,512.80, 155,302.01 and 36,951.50

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Solution

The fourth proportional to 103,512.80, 155,302.01 and 36,951.50 is: 55,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,512.80 : 155,302.01 = 36,951.50 : x
  2. Step 2: Convert to fraction form
    103,512.80/155,302.01 = 36,951.50/x
  3. Step 3: Cross multiply
    103,512.80x = 155,302.01 × 36,951.50
  4. Step 4: Simplify right side
    103,512.80x = 5,738,641,538.38
  5. Step 5: Solve for x
    x = 5,738,641,538.38/103,512.80
  6. Step 6: Final answer
    x = 55,438.96

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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.