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Finding the Fourth Proportional to 103,349.40, 154,894.69 and 44,115.72

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Solution

The fourth proportional to 103,349.40, 154,894.69 and 44,115.72 is: 66,118.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,349.40 : 154,894.69 = 44,115.72 : x
  2. Step 2: Convert to fraction form
    103,349.40/154,894.69 = 44,115.72/x
  3. Step 3: Cross multiply
    103,349.40x = 154,894.69 × 44,115.72
  4. Step 4: Simplify right side
    103,349.40x = 6,833,290,773.53
  5. Step 5: Solve for x
    x = 6,833,290,773.53/103,349.40
  6. Step 6: Final answer
    x = 66,118.34

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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.