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Finding the Fourth Proportional to 187,244.33, 280,860.32 and 74,894.38

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Solution

The fourth proportional to 187,244.33, 280,860.32 and 74,894.38 is: 112,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,244.33 : 280,860.32 = 74,894.38 : x
  2. Step 2: Convert to fraction form
    187,244.33/280,860.32 = 74,894.38/x
  3. Step 3: Cross multiply
    187,244.33x = 280,860.32 × 74,894.38
  4. Step 4: Simplify right side
    187,244.33x = 21,034,859,018.09
  5. Step 5: Solve for x
    x = 21,034,859,018.09/187,244.33
  6. Step 6: Final answer
    x = 112,339.10

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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.