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Finding the Fourth Proportional to 216,068.88, 324,115.47 and 58,309.64

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Solution

The fourth proportional to 216,068.88, 324,115.47 and 58,309.64 is: 87,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,068.88 : 324,115.47 = 58,309.64 : x
  2. Step 2: Convert to fraction form
    216,068.88/324,115.47 = 58,309.64/x
  3. Step 3: Cross multiply
    216,068.88x = 324,115.47 × 58,309.64
  4. Step 4: Simplify right side
    216,068.88x = 18,899,054,753.55
  5. Step 5: Solve for x
    x = 18,899,054,753.55/216,068.88
  6. Step 6: Final answer
    x = 87,467.73

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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.