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Finding the Fourth Proportional to 103,618.52, 155,427.78 and 37,054.61

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Solution

The fourth proportional to 103,618.52, 155,427.78 and 37,054.61 is: 55,581.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.52 : 155,427.78 = 37,054.61 : x
  2. Step 2: Convert to fraction form
    103,618.52/155,427.78 = 37,054.61/x
  3. Step 3: Cross multiply
    103,618.52x = 155,427.78 × 37,054.61
  4. Step 4: Simplify right side
    103,618.52x = 5,759,314,993.93
  5. Step 5: Solve for x
    x = 5,759,314,993.93/103,618.52
  6. Step 6: Final answer
    x = 55,581.91

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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.