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Finding the Fourth Proportional to 103,336.70, 155,019.45 and 44,171.90

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Solution

The fourth proportional to 103,336.70, 155,019.45 and 44,171.90 is: 66,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,336.70 : 155,019.45 = 44,171.90 : x
  2. Step 2: Convert to fraction form
    103,336.70/155,019.45 = 44,171.90/x
  3. Step 3: Cross multiply
    103,336.70x = 155,019.45 × 44,171.90
  4. Step 4: Simplify right side
    103,336.70x = 6,847,503,643.46
  5. Step 5: Solve for x
    x = 6,847,503,643.46/103,336.70
  6. Step 6: Final answer
    x = 66,264.01

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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.