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Finding the Fourth Proportional to 75,099.41, 103,630.15 and 44,878.71

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Solution

The fourth proportional to 75,099.41, 103,630.15 and 44,878.71 is: 61,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,099.41 : 103,630.15 = 44,878.71 : x
  2. Step 2: Convert to fraction form
    75,099.41/103,630.15 = 44,878.71/x
  3. Step 3: Cross multiply
    75,099.41x = 103,630.15 × 44,878.71
  4. Step 4: Simplify right side
    75,099.41x = 4,650,787,449.11
  5. Step 5: Solve for x
    x = 4,650,787,449.11/75,099.41
  6. Step 6: Final answer
    x = 61,928.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.