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Finding the Fourth Proportional to 400,331.65, 600,158.34 and 175,521.72

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Solution

The fourth proportional to 400,331.65, 600,158.34 and 175,521.72 is: 263,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,331.65 : 600,158.34 = 175,521.72 : x
  2. Step 2: Convert to fraction form
    400,331.65/600,158.34 = 175,521.72/x
  3. Step 3: Cross multiply
    400,331.65x = 600,158.34 × 175,521.72
  4. Step 4: Simplify right side
    400,331.65x = 105,340,824,109.15
  5. Step 5: Solve for x
    x = 105,340,824,109.15/400,331.65
  6. Step 6: Final answer
    x = 263,133.89

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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.