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Finding the Fourth Proportional to 220,120.74, 303,766.74 and 119,518.74

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Solution

The fourth proportional to 220,120.74, 303,766.74 and 119,518.74 is: 164,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,120.74 : 303,766.74 = 119,518.74 : x
  2. Step 2: Convert to fraction form
    220,120.74/303,766.74 = 119,518.74/x
  3. Step 3: Cross multiply
    220,120.74x = 303,766.74 × 119,518.74
  4. Step 4: Simplify right side
    220,120.74x = 36,305,818,018.71
  5. Step 5: Solve for x
    x = 36,305,818,018.71/220,120.74
  6. Step 6: Final answer
    x = 164,935.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.