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Finding the Fourth Proportional to 69,101.48, 103,518.60 and 57,874.88

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Solution

The fourth proportional to 69,101.48, 103,518.60 and 57,874.88 is: 86,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,101.48 : 103,518.60 = 57,874.88 : x
  2. Step 2: Convert to fraction form
    69,101.48/103,518.60 = 57,874.88/x
  3. Step 3: Cross multiply
    69,101.48x = 103,518.60 × 57,874.88
  4. Step 4: Simplify right side
    69,101.48x = 5,991,126,552.77
  5. Step 5: Solve for x
    x = 5,991,126,552.77/69,101.48
  6. Step 6: Final answer
    x = 86,700.41

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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.