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Finding the Fourth Proportional to 70,108.52, 96,751.87 and 39,898.17

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Solution

The fourth proportional to 70,108.52, 96,751.87 and 39,898.17 is: 55,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,108.52 : 96,751.87 = 39,898.17 : x
  2. Step 2: Convert to fraction form
    70,108.52/96,751.87 = 39,898.17/x
  3. Step 3: Cross multiply
    70,108.52x = 96,751.87 × 39,898.17
  4. Step 4: Simplify right side
    70,108.52x = 3,860,222,457.33
  5. Step 5: Solve for x
    x = 3,860,222,457.33/70,108.52
  6. Step 6: Final answer
    x = 55,060.68

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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.