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Finding the Fourth Proportional to 224,867.98, 336,519.51 and 139,438.90

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Solution

The fourth proportional to 224,867.98, 336,519.51 and 139,438.90 is: 208,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,867.98 : 336,519.51 = 139,438.90 : x
  2. Step 2: Convert to fraction form
    224,867.98/336,519.51 = 139,438.90/x
  3. Step 3: Cross multiply
    224,867.98x = 336,519.51 × 139,438.90
  4. Step 4: Simplify right side
    224,867.98x = 46,923,910,302.94
  5. Step 5: Solve for x
    x = 46,923,910,302.94/224,867.98
  6. Step 6: Final answer
    x = 208,673.15

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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.