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Finding the Fourth Proportional to 160,940.80, 241,411.20 and 67,436.80

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Solution

The fourth proportional to 160,940.80, 241,411.20 and 67,436.80 is: 101,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,940.80 : 241,411.20 = 67,436.80 : x
  2. Step 2: Convert to fraction form
    160,940.80/241,411.20 = 67,436.80/x
  3. Step 3: Cross multiply
    160,940.80x = 241,411.20 × 67,436.80
  4. Step 4: Simplify right side
    160,940.80x = 16,279,998,812.16
  5. Step 5: Solve for x
    x = 16,279,998,812.16/160,940.80
  6. Step 6: Final answer
    x = 101,155.20

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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.