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Finding the Fourth Proportional to 109,488.52, 164,232.78 and 39,329.56

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Solution

The fourth proportional to 109,488.52, 164,232.78 and 39,329.56 is: 58,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,488.52 : 164,232.78 = 39,329.56 : x
  2. Step 2: Convert to fraction form
    109,488.52/164,232.78 = 39,329.56/x
  3. Step 3: Cross multiply
    109,488.52x = 164,232.78 × 39,329.56
  4. Step 4: Simplify right side
    109,488.52x = 6,459,202,974.98
  5. Step 5: Solve for x
    x = 6,459,202,974.98/109,488.52
  6. Step 6: Final answer
    x = 58,994.34

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1.5x scale

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.