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Finding the Fourth Proportional to 109,375.02, 150,917.31 and 64,050.66

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Solution

The fourth proportional to 109,375.02, 150,917.31 and 64,050.66 is: 88,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,375.02 : 150,917.31 = 64,050.66 : x
  2. Step 2: Convert to fraction form
    109,375.02/150,917.31 = 64,050.66/x
  3. Step 3: Cross multiply
    109,375.02x = 150,917.31 × 64,050.66
  4. Step 4: Simplify right side
    109,375.02x = 9,666,353,310.92
  5. Step 5: Solve for x
    x = 9,666,353,310.92/109,375.02
  6. Step 6: Final answer
    x = 88,378.07

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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.