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Finding the Fourth Proportional to 67,398.32, 101,185.08 and 51,826.88

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Solution

The fourth proportional to 67,398.32, 101,185.08 and 51,826.88 is: 77,807.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,398.32 : 101,185.08 = 51,826.88 : x
  2. Step 2: Convert to fraction form
    67,398.32/101,185.08 = 51,826.88/x
  3. Step 3: Cross multiply
    67,398.32x = 101,185.08 × 51,826.88
  4. Step 4: Simplify right side
    67,398.32x = 5,244,106,998.95
  5. Step 5: Solve for x
    x = 5,244,106,998.95/67,398.32
  6. Step 6: Final answer
    x = 77,807.68

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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.