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Finding the Fourth Proportional to 245,138.60, 367,697.88 and 67,641.08

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Solution

The fourth proportional to 245,138.60, 367,697.88 and 67,641.08 is: 101,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,138.60 : 367,697.88 = 67,641.08 : x
  2. Step 2: Convert to fraction form
    245,138.60/367,697.88 = 67,641.08/x
  3. Step 3: Cross multiply
    245,138.60x = 367,697.88 × 67,641.08
  4. Step 4: Simplify right side
    245,138.60x = 24,871,481,716.91
  5. Step 5: Solve for x
    x = 24,871,481,716.91/245,138.60
  6. Step 6: Final answer
    x = 101,458.86

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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.