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Finding the Fourth Proportional to 216,256.32, 324,359.86 and 58,472.47

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Solution

The fourth proportional to 216,256.32, 324,359.86 and 58,472.47 is: 87,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,256.32 : 324,359.86 = 58,472.47 : x
  2. Step 2: Convert to fraction form
    216,256.32/324,359.86 = 58,472.47/x
  3. Step 3: Cross multiply
    216,256.32x = 324,359.86 × 58,472.47
  4. Step 4: Simplify right side
    216,256.32x = 18,966,122,183.05
  5. Step 5: Solve for x
    x = 18,966,122,183.05/216,256.32
  6. Step 6: Final answer
    x = 87,702.05

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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.