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Finding the Fourth Proportional to 368,438.88, 552,658.29 and 102,199.41

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Solution

The fourth proportional to 368,438.88, 552,658.29 and 102,199.41 is: 153,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,438.88 : 552,658.29 = 102,199.41 : x
  2. Step 2: Convert to fraction form
    368,438.88/552,658.29 = 102,199.41/x
  3. Step 3: Cross multiply
    368,438.88x = 552,658.29 × 102,199.41
  4. Step 4: Simplify right side
    368,438.88x = 56,481,351,169.61
  5. Step 5: Solve for x
    x = 56,481,351,169.61/368,438.88
  6. Step 6: Final answer
    x = 153,299.11

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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.