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Finding the Fourth Proportional to 201,487.64, 278,044.17 and 110,837.85

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Solution

The fourth proportional to 201,487.64, 278,044.17 and 110,837.85 is: 152,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,487.64 : 278,044.17 = 110,837.85 : x
  2. Step 2: Convert to fraction form
    201,487.64/278,044.17 = 110,837.85/x
  3. Step 3: Cross multiply
    201,487.64x = 278,044.17 × 110,837.85
  4. Step 4: Simplify right side
    201,487.64x = 30,817,818,007.83
  5. Step 5: Solve for x
    x = 30,817,818,007.83/201,487.64
  6. Step 6: Final answer
    x = 152,951.41

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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.