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Finding the Fourth Proportional to 299,007.28, 448,584.75 and 88,645.22

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Solution

The fourth proportional to 299,007.28, 448,584.75 and 88,645.22 is: 132,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,007.28 : 448,584.75 = 88,645.22 : x
  2. Step 2: Convert to fraction form
    299,007.28/448,584.75 = 88,645.22/x
  3. Step 3: Cross multiply
    299,007.28x = 448,584.75 × 88,645.22
  4. Step 4: Simplify right side
    299,007.28x = 39,764,893,291.66
  5. Step 5: Solve for x
    x = 39,764,893,291.66/299,007.28
  6. Step 6: Final answer
    x = 132,989.72

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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.