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Finding the Fourth Proportional to 73,383.60, 110,047.46 and 31,237.08

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Solution

The fourth proportional to 73,383.60, 110,047.46 and 31,237.08 is: 46,843.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,383.60 : 110,047.46 = 31,237.08 : x
  2. Step 2: Convert to fraction form
    73,383.60/110,047.46 = 31,237.08/x
  3. Step 3: Cross multiply
    73,383.60x = 110,047.46 × 31,237.08
  4. Step 4: Simplify right side
    73,383.60x = 3,437,561,155.63
  5. Step 5: Solve for x
    x = 3,437,561,155.63/73,383.60
  6. Step 6: Final answer
    x = 46,843.72

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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.