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Finding the Fourth Proportional to 73,890.48, 110,869.80 and 45,843.48

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Solution

The fourth proportional to 73,890.48, 110,869.80 and 45,843.48 is: 68,786.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,890.48 : 110,869.80 = 45,843.48 : x
  2. Step 2: Convert to fraction form
    73,890.48/110,869.80 = 45,843.48/x
  3. Step 3: Cross multiply
    73,890.48x = 110,869.80 × 45,843.48
  4. Step 4: Simplify right side
    73,890.48x = 5,082,657,458.90
  5. Step 5: Solve for x
    x = 5,082,657,458.90/73,890.48
  6. Step 6: Final answer
    x = 68,786.36

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1.5x scale

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.