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Finding the Fourth Proportional to 253,705.67, 349,945.06 and 163,176.17

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Solution

The fourth proportional to 253,705.67, 349,945.06 and 163,176.17 is: 225,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,705.67 : 349,945.06 = 163,176.17 : x
  2. Step 2: Convert to fraction form
    253,705.67/349,945.06 = 163,176.17/x
  3. Step 3: Cross multiply
    253,705.67x = 349,945.06 × 163,176.17
  4. Step 4: Simplify right side
    253,705.67x = 57,102,694,717.95
  5. Step 5: Solve for x
    x = 57,102,694,717.95/253,705.67
  6. Step 6: Final answer
    x = 225,074.57

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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.