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Finding the Fourth Proportional to 187,990.44, 259,443.44 and 103,124.04

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Solution

The fourth proportional to 187,990.44, 259,443.44 and 103,124.04 is: 142,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,990.44 : 259,443.44 = 103,124.04 : x
  2. Step 2: Convert to fraction form
    187,990.44/259,443.44 = 103,124.04/x
  3. Step 3: Cross multiply
    187,990.44x = 259,443.44 × 103,124.04
  4. Step 4: Simplify right side
    187,990.44x = 26,754,855,684.30
  5. Step 5: Solve for x
    x = 26,754,855,684.30/187,990.44
  6. Step 6: Final answer
    x = 142,320.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.