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Finding the Fourth Proportional to 163,471.30, 245,301.72 and 68,694.02

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Solution

The fourth proportional to 163,471.30, 245,301.72 and 68,694.02 is: 103,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,471.30 : 245,301.72 = 68,694.02 : x
  2. Step 2: Convert to fraction form
    163,471.30/245,301.72 = 68,694.02/x
  3. Step 3: Cross multiply
    163,471.30x = 245,301.72 × 68,694.02
  4. Step 4: Simplify right side
    163,471.30x = 16,850,761,259.71
  5. Step 5: Solve for x
    x = 16,850,761,259.71/163,471.30
  6. Step 6: Final answer
    x = 103,080.85

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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.