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Finding the Fourth Proportional to 227,315.98, 340,987.62 and 69,545.80

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Solution

The fourth proportional to 227,315.98, 340,987.62 and 69,545.80 is: 104,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,315.98 : 340,987.62 = 69,545.80 : x
  2. Step 2: Convert to fraction form
    227,315.98/340,987.62 = 69,545.80/x
  3. Step 3: Cross multiply
    227,315.98x = 340,987.62 × 69,545.80
  4. Step 4: Simplify right side
    227,315.98x = 23,714,254,770.33
  5. Step 5: Solve for x
    x = 23,714,254,770.33/227,315.98
  6. Step 6: Final answer
    x = 104,322.87

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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.