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Finding the Fourth Proportional to 103,620.52, 155,430.78 and 37,056.61

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Solution

The fourth proportional to 103,620.52, 155,430.78 and 37,056.61 is: 55,584.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.52 : 155,430.78 = 37,056.61 : x
  2. Step 2: Convert to fraction form
    103,620.52/155,430.78 = 37,056.61/x
  3. Step 3: Cross multiply
    103,620.52x = 155,430.78 × 37,056.61
  4. Step 4: Simplify right side
    103,620.52x = 5,759,737,796.46
  5. Step 5: Solve for x
    x = 5,759,737,796.46/103,620.52
  6. Step 6: Final answer
    x = 55,584.92

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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.