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Finding the Fourth Proportional to 89,118.70, 133,698.30 and 29,960.35

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Solution

The fourth proportional to 89,118.70, 133,698.30 and 29,960.35 is: 44,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,118.70 : 133,698.30 = 29,960.35 : x
  2. Step 2: Convert to fraction form
    89,118.70/133,698.30 = 29,960.35/x
  3. Step 3: Cross multiply
    89,118.70x = 133,698.30 × 29,960.35
  4. Step 4: Simplify right side
    89,118.70x = 4,005,647,862.41
  5. Step 5: Solve for x
    x = 4,005,647,862.41/89,118.70
  6. Step 6: Final answer
    x = 44,947.33

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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.