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Finding the Fourth Proportional to 220,597.24, 330,864.63 and 70,817.82

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Solution

The fourth proportional to 220,597.24, 330,864.63 and 70,817.82 is: 106,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,597.24 : 330,864.63 = 70,817.82 : x
  2. Step 2: Convert to fraction form
    220,597.24/330,864.63 = 70,817.82/x
  3. Step 3: Cross multiply
    220,597.24x = 330,864.63 × 70,817.82
  4. Step 4: Simplify right side
    220,597.24x = 23,431,111,811.71
  5. Step 5: Solve for x
    x = 23,431,111,811.71/220,597.24
  6. Step 6: Final answer
    x = 106,216.70

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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.