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Finding the Fourth Proportional to 440,296.65, 660,122.19 and 140,604.48

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Solution

The fourth proportional to 440,296.65, 660,122.19 and 140,604.48 is: 210,803.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,296.65 : 660,122.19 = 140,604.48 : x
  2. Step 2: Convert to fraction form
    440,296.65/660,122.19 = 140,604.48/x
  3. Step 3: Cross multiply
    440,296.65x = 660,122.19 × 140,604.48
  4. Step 4: Simplify right side
    440,296.65x = 92,816,137,261.41
  5. Step 5: Solve for x
    x = 92,816,137,261.41/440,296.65
  6. Step 6: Final answer
    x = 210,803.64

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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.