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Finding the Fourth Proportional to 74,015.80, 111,023.70 and 60,893.80

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Solution

The fourth proportional to 74,015.80, 111,023.70 and 60,893.80 is: 91,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015.80 : 111,023.70 = 60,893.80 : x
  2. Step 2: Convert to fraction form
    74,015.80/111,023.70 = 60,893.80/x
  3. Step 3: Cross multiply
    74,015.80x = 111,023.70 × 60,893.80
  4. Step 4: Simplify right side
    74,015.80x = 6,760,654,983.06
  5. Step 5: Solve for x
    x = 6,760,654,983.06/74,015.80
  6. Step 6: Final answer
    x = 91,340.70

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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.