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Finding the Fourth Proportional to 109,940.82, 151,718.62 and 59,639.82

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Solution

The fourth proportional to 109,940.82, 151,718.62 and 59,639.82 is: 82,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,940.82 : 151,718.62 = 59,639.82 : x
  2. Step 2: Convert to fraction form
    109,940.82/151,718.62 = 59,639.82/x
  3. Step 3: Cross multiply
    109,940.82x = 151,718.62 × 59,639.82
  4. Step 4: Simplify right side
    109,940.82x = 9,048,471,187.45
  5. Step 5: Solve for x
    x = 9,048,471,187.45/109,940.82
  6. Step 6: Final answer
    x = 82,303.11

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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.