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Finding the Fourth Proportional to 109,049.39, 150,488.79 and 61,302.32

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Solution

The fourth proportional to 109,049.39, 150,488.79 and 61,302.32 is: 84,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,049.39 : 150,488.79 = 61,302.32 : x
  2. Step 2: Convert to fraction form
    109,049.39/150,488.79 = 61,302.32/x
  3. Step 3: Cross multiply
    109,049.39x = 150,488.79 × 61,302.32
  4. Step 4: Simplify right side
    109,049.39x = 9,225,311,960.99
  5. Step 5: Solve for x
    x = 9,225,311,960.99/109,049.39
  6. Step 6: Final answer
    x = 84,597.56

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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.