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Finding the Fourth Proportional to 245,470.32, 368,205.42 and 67,977.30

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Solution

The fourth proportional to 245,470.32, 368,205.42 and 67,977.30 is: 101,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,470.32 : 368,205.42 = 67,977.30 : x
  2. Step 2: Convert to fraction form
    245,470.32/368,205.42 = 67,977.30/x
  3. Step 3: Cross multiply
    245,470.32x = 368,205.42 × 67,977.30
  4. Step 4: Simplify right side
    245,470.32x = 25,029,610,296.97
  5. Step 5: Solve for x
    x = 25,029,610,296.97/245,470.32
  6. Step 6: Final answer
    x = 101,965.93

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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.