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Finding the Fourth Proportional to 70,107.22, 96,746.65 and 39,891.86

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Solution

The fourth proportional to 70,107.22, 96,746.65 and 39,891.86 is: 55,050.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.22 : 96,746.65 = 39,891.86 : x
  2. Step 2: Convert to fraction form
    70,107.22/96,746.65 = 39,891.86/x
  3. Step 3: Cross multiply
    70,107.22x = 96,746.65 × 39,891.86
  4. Step 4: Simplify right side
    70,107.22x = 3,859,403,817.27
  5. Step 5: Solve for x
    x = 3,859,403,817.27/70,107.22
  6. Step 6: Final answer
    x = 55,050.02

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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.