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Finding the Fourth Proportional to 73,412.10, 110,251.80 and 43,887.60

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Solution

The fourth proportional to 73,412.10, 110,251.80 and 43,887.60 is: 65,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,412.10 : 110,251.80 = 43,887.60 : x
  2. Step 2: Convert to fraction form
    73,412.10/110,251.80 = 43,887.60/x
  3. Step 3: Cross multiply
    73,412.10x = 110,251.80 × 43,887.60
  4. Step 4: Simplify right side
    73,412.10x = 4,838,686,897.68
  5. Step 5: Solve for x
    x = 4,838,686,897.68/73,412.10
  6. Step 6: Final answer
    x = 65,911.30

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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.