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Finding the Fourth Proportional to 103,579.62, 155,369.52 and 44,376.90

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Solution

The fourth proportional to 103,579.62, 155,369.52 and 44,376.90 is: 66,565.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,579.62 : 155,369.52 = 44,376.90 : x
  2. Step 2: Convert to fraction form
    103,579.62/155,369.52 = 44,376.90/x
  3. Step 3: Cross multiply
    103,579.62x = 155,369.52 × 44,376.90
  4. Step 4: Simplify right side
    103,579.62x = 6,894,817,652.09
  5. Step 5: Solve for x
    x = 6,894,817,652.09/103,579.62
  6. Step 6: Final answer
    x = 66,565.39

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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.