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Finding the Fourth Proportional to 73,947.68, 110,899.62 and 21,357.62

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Solution

The fourth proportional to 73,947.68, 110,899.62 and 21,357.62 is: 32,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,947.68 : 110,899.62 = 21,357.62 : x
  2. Step 2: Convert to fraction form
    73,947.68/110,899.62 = 21,357.62/x
  3. Step 3: Cross multiply
    73,947.68x = 110,899.62 × 21,357.62
  4. Step 4: Simplify right side
    73,947.68x = 2,368,551,942.10
  5. Step 5: Solve for x
    x = 2,368,551,942.10/73,947.68
  6. Step 6: Final answer
    x = 32,030.10

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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.