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Finding the Fourth Proportional to 103,658.90, 155,489.07 and 44,444.66

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Solution

The fourth proportional to 103,658.90, 155,489.07 and 44,444.66 is: 66,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,658.90 : 155,489.07 = 44,444.66 : x
  2. Step 2: Convert to fraction form
    103,658.90/155,489.07 = 44,444.66/x
  3. Step 3: Cross multiply
    103,658.90x = 155,489.07 × 44,444.66
  4. Step 4: Simplify right side
    103,658.90x = 6,910,658,849.87
  5. Step 5: Solve for x
    x = 6,910,658,849.87/103,658.90
  6. Step 6: Final answer
    x = 66,667.30

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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.