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Finding the Fourth Proportional to 109,033.80, 163,550.70 and 93,481.80

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Solution

The fourth proportional to 109,033.80, 163,550.70 and 93,481.80 is: 140,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,033.80 : 163,550.70 = 93,481.80 : x
  2. Step 2: Convert to fraction form
    109,033.80/163,550.70 = 93,481.80/x
  3. Step 3: Cross multiply
    109,033.80x = 163,550.70 × 93,481.80
  4. Step 4: Simplify right side
    109,033.80x = 15,289,013,827.26
  5. Step 5: Solve for x
    x = 15,289,013,827.26/109,033.80
  6. Step 6: Final answer
    x = 140,222.70

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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.