Home / 207,892.20-311,870.98-67,618.02

Finding the Fourth Proportional to 207,892.20, 311,870.98 and 67,618.02

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Solution

The fourth proportional to 207,892.20, 311,870.98 and 67,618.02 is: 101,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,892.20 : 311,870.98 = 67,618.02 : x
  2. Step 2: Convert to fraction form
    207,892.20/311,870.98 = 67,618.02/x
  3. Step 3: Cross multiply
    207,892.20x = 311,870.98 × 67,618.02
  4. Step 4: Simplify right side
    207,892.20x = 21,088,098,163.06
  5. Step 5: Solve for x
    x = 21,088,098,163.06/207,892.20
  6. Step 6: Final answer
    x = 101,437.66

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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.