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Finding the Fourth Proportional to 103,620.46, 155,430.69 and 37,056.55

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Solution

The fourth proportional to 103,620.46, 155,430.69 and 37,056.55 is: 55,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.46 : 155,430.69 = 37,056.55 : x
  2. Step 2: Convert to fraction form
    103,620.46/155,430.69 = 37,056.55/x
  3. Step 3: Cross multiply
    103,620.46x = 155,430.69 × 37,056.55
  4. Step 4: Simplify right side
    103,620.46x = 5,759,725,135.52
  5. Step 5: Solve for x
    x = 5,759,725,135.52/103,620.46
  6. Step 6: Final answer
    x = 55,584.83

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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.