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Finding the Fourth Proportional to 136,573.50, 204,919.35 and 73,319.82

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Solution

The fourth proportional to 136,573.50, 204,919.35 and 73,319.82 is: 110,011.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,573.50 : 204,919.35 = 73,319.82 : x
  2. Step 2: Convert to fraction form
    136,573.50/204,919.35 = 73,319.82/x
  3. Step 3: Cross multiply
    136,573.50x = 204,919.35 × 73,319.82
  4. Step 4: Simplify right side
    136,573.50x = 15,024,649,856.52
  5. Step 5: Solve for x
    x = 15,024,649,856.52/136,573.50
  6. Step 6: Final answer
    x = 110,011.46

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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.