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Finding the Fourth Proportional to 109,093.40, 150,546.28 and 71,366.84

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Solution

The fourth proportional to 109,093.40, 150,546.28 and 71,366.84 is: 98,484.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,093.40 : 150,546.28 = 71,366.84 : x
  2. Step 2: Convert to fraction form
    109,093.40/150,546.28 = 71,366.84/x
  3. Step 3: Cross multiply
    109,093.40x = 150,546.28 × 71,366.84
  4. Step 4: Simplify right side
    109,093.40x = 10,744,012,277.36
  5. Step 5: Solve for x
    x = 10,744,012,277.36/109,093.40
  6. Step 6: Final answer
    x = 98,484.53

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1.5x scale

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.