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Finding the Fourth Proportional to 72,594.99, 108,899.37 and 28,225.17

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Solution

The fourth proportional to 72,594.99, 108,899.37 and 28,225.17 is: 42,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,594.99 : 108,899.37 = 28,225.17 : x
  2. Step 2: Convert to fraction form
    72,594.99/108,899.37 = 28,225.17/x
  3. Step 3: Cross multiply
    72,594.99x = 108,899.37 × 28,225.17
  4. Step 4: Simplify right side
    72,594.99x = 3,073,703,231.14
  5. Step 5: Solve for x
    x = 3,073,703,231.14/72,594.99
  6. Step 6: Final answer
    x = 42,340.43

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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.