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Finding the Fourth Proportional to 400,990.80, 600,853.38 and 147,923.04

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Solution

The fourth proportional to 400,990.80, 600,853.38 and 147,923.04 is: 221,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,990.80 : 600,853.38 = 147,923.04 : x
  2. Step 2: Convert to fraction form
    400,990.80/600,853.38 = 147,923.04/x
  3. Step 3: Cross multiply
    400,990.80x = 600,853.38 × 147,923.04
  4. Step 4: Simplify right side
    400,990.80x = 88,880,058,563.88
  5. Step 5: Solve for x
    x = 88,880,058,563.88/400,990.80
  6. Step 6: Final answer
    x = 221,651.12

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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.