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Finding the Fourth Proportional to 253,211.95, 349,853.61 and 199,905.04

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Solution

The fourth proportional to 253,211.95, 349,853.61 and 199,905.04 is: 276,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,211.95 : 349,853.61 = 199,905.04 : x
  2. Step 2: Convert to fraction form
    253,211.95/349,853.61 = 199,905.04/x
  3. Step 3: Cross multiply
    253,211.95x = 349,853.61 × 199,905.04
  4. Step 4: Simplify right side
    253,211.95x = 69,937,499,901.19
  5. Step 5: Solve for x
    x = 69,937,499,901.19/253,211.95
  6. Step 6: Final answer
    x = 276,201.42

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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.