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Finding the Fourth Proportional to 372,080.80, 558,121.20 and 119,360.80

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Solution

The fourth proportional to 372,080.80, 558,121.20 and 119,360.80 is: 179,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,080.80 : 558,121.20 = 119,360.80 : x
  2. Step 2: Convert to fraction form
    372,080.80/558,121.20 = 119,360.80/x
  3. Step 3: Cross multiply
    372,080.80x = 558,121.20 × 119,360.80
  4. Step 4: Simplify right side
    372,080.80x = 66,617,792,928.96
  5. Step 5: Solve for x
    x = 66,617,792,928.96/372,080.80
  6. Step 6: Final answer
    x = 179,041.20

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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.