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Finding the Fourth Proportional to 199,374.98, 274,981.95 and 127,761.66

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Solution

The fourth proportional to 199,374.98, 274,981.95 and 127,761.66 is: 176,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,374.98 : 274,981.95 = 127,761.66 : x
  2. Step 2: Convert to fraction form
    199,374.98/274,981.95 = 127,761.66/x
  3. Step 3: Cross multiply
    199,374.98x = 274,981.95 × 127,761.66
  4. Step 4: Simplify right side
    199,374.98x = 35,132,150,402.04
  5. Step 5: Solve for x
    x = 35,132,150,402.04/199,374.98
  6. Step 6: Final answer
    x = 176,211.43

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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.