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Finding the Fourth Proportional to 399,626.74, 599,050.50 and 159,669.10

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Solution

The fourth proportional to 399,626.74, 599,050.50 and 159,669.10 is: 239,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,626.74 : 599,050.50 = 159,669.10 : x
  2. Step 2: Convert to fraction form
    399,626.74/599,050.50 = 159,669.10/x
  3. Step 3: Cross multiply
    399,626.74x = 599,050.50 × 159,669.10
  4. Step 4: Simplify right side
    399,626.74x = 95,649,854,189.55
  5. Step 5: Solve for x
    x = 95,649,854,189.55/399,626.74
  6. Step 6: Final answer
    x = 239,347.98

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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.