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Finding the Fourth Proportional to 122,063.80, 168,392.08 and 73,684.12

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Solution

The fourth proportional to 122,063.80, 168,392.08 and 73,684.12 is: 101,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,063.80 : 168,392.08 = 73,684.12 : x
  2. Step 2: Convert to fraction form
    122,063.80/168,392.08 = 73,684.12/x
  3. Step 3: Cross multiply
    122,063.80x = 168,392.08 × 73,684.12
  4. Step 4: Simplify right side
    122,063.80x = 12,407,822,229.77
  5. Step 5: Solve for x
    x = 12,407,822,229.77/122,063.80
  6. Step 6: Final answer
    x = 101,650.30

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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.