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Finding the Fourth Proportional to 92,884.88, 139,308.68 and 45,479.54

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Solution

The fourth proportional to 92,884.88, 139,308.68 and 45,479.54 is: 68,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,884.88 : 139,308.68 = 45,479.54 : x
  2. Step 2: Convert to fraction form
    92,884.88/139,308.68 = 45,479.54/x
  3. Step 3: Cross multiply
    92,884.88x = 139,308.68 × 45,479.54
  4. Step 4: Simplify right side
    92,884.88x = 6,335,694,684.41
  5. Step 5: Solve for x
    x = 6,335,694,684.41/92,884.88
  6. Step 6: Final answer
    x = 68,210.18

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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.