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Finding the Fourth Proportional to 74,162.56, 111,243.75 and 29,789.32

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Solution

The fourth proportional to 74,162.56, 111,243.75 and 29,789.32 is: 44,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,162.56 : 111,243.75 = 29,789.32 : x
  2. Step 2: Convert to fraction form
    74,162.56/111,243.75 = 29,789.32/x
  3. Step 3: Cross multiply
    74,162.56x = 111,243.75 × 29,789.32
  4. Step 4: Simplify right side
    74,162.56x = 3,313,875,666.75
  5. Step 5: Solve for x
    x = 3,313,875,666.75/74,162.56
  6. Step 6: Final answer
    x = 44,683.94

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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.