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Finding the Fourth Proportional to 227,187.57, 340,842.71 and 69,411.72

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Solution

The fourth proportional to 227,187.57, 340,842.71 and 69,411.72 is: 104,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,187.57 : 340,842.71 = 69,411.72 : x
  2. Step 2: Convert to fraction form
    227,187.57/340,842.71 = 69,411.72/x
  3. Step 3: Cross multiply
    227,187.57x = 340,842.71 × 69,411.72
  4. Step 4: Simplify right side
    227,187.57x = 23,658,477,255.49
  5. Step 5: Solve for x
    x = 23,658,477,255.49/227,187.57
  6. Step 6: Final answer
    x = 104,136.32

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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.