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Finding the Fourth Proportional to 185,729.80, 278,404.06 and 73,364.52

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Solution

The fourth proportional to 185,729.80, 278,404.06 and 73,364.52 is: 109,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,729.80 : 278,404.06 = 73,364.52 : x
  2. Step 2: Convert to fraction form
    185,729.80/278,404.06 = 73,364.52/x
  3. Step 3: Cross multiply
    185,729.80x = 278,404.06 × 73,364.52
  4. Step 4: Simplify right side
    185,729.80x = 20,424,980,227.95
  5. Step 5: Solve for x
    x = 20,424,980,227.95/185,729.80
  6. Step 6: Final answer
    x = 109,971.48

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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.