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Finding the Fourth Proportional to 65,308.45, 90,057.22 and 48,348.27

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Solution

The fourth proportional to 65,308.45, 90,057.22 and 48,348.27 is: 66,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,308.45 : 90,057.22 = 48,348.27 : x
  2. Step 2: Convert to fraction form
    65,308.45/90,057.22 = 48,348.27/x
  3. Step 3: Cross multiply
    65,308.45x = 90,057.22 × 48,348.27
  4. Step 4: Simplify right side
    65,308.45x = 4,354,110,788.01
  5. Step 5: Solve for x
    x = 4,354,110,788.01/65,308.45
  6. Step 6: Final answer
    x = 66,669.95

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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.