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Finding the Fourth Proportional to 253,552.31, 379,767.85 and 173,400.32

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Solution

The fourth proportional to 253,552.31, 379,767.85 and 173,400.32 is: 259,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,552.31 : 379,767.85 = 173,400.32 : x
  2. Step 2: Convert to fraction form
    253,552.31/379,767.85 = 173,400.32/x
  3. Step 3: Cross multiply
    253,552.31x = 379,767.85 × 173,400.32
  4. Step 4: Simplify right side
    253,552.31x = 65,851,866,715.71
  5. Step 5: Solve for x
    x = 65,851,866,715.71/253,552.31
  6. Step 6: Final answer
    x = 259,717.08

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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.