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Finding the Fourth Proportional to 227,313.98, 340,984.61 and 69,543.80

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Solution

The fourth proportional to 227,313.98, 340,984.61 and 69,543.80 is: 104,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,313.98 : 340,984.61 = 69,543.80 : x
  2. Step 2: Convert to fraction form
    227,313.98/340,984.61 = 69,543.80/x
  3. Step 3: Cross multiply
    227,313.98x = 340,984.61 × 69,543.80
  4. Step 4: Simplify right side
    227,313.98x = 23,713,363,989.85
  5. Step 5: Solve for x
    x = 23,713,363,989.85/227,313.98
  6. Step 6: Final answer
    x = 104,319.87

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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.