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Finding the Fourth Proportional to 216,255.32, 324,358.36 and 58,471.47

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Solution

The fourth proportional to 216,255.32, 324,358.36 and 58,471.47 is: 87,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,255.32 : 324,358.36 = 58,471.47 : x
  2. Step 2: Convert to fraction form
    216,255.32/324,358.36 = 58,471.47/x
  3. Step 3: Cross multiply
    216,255.32x = 324,358.36 × 58,471.47
  4. Step 4: Simplify right side
    216,255.32x = 18,965,709,969.81
  5. Step 5: Solve for x
    x = 18,965,709,969.81/216,255.32
  6. Step 6: Final answer
    x = 87,700.55

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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.