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Finding the Fourth Proportional to 299,030.72, 448,469.68 and 88,619.52

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Solution

The fourth proportional to 299,030.72, 448,469.68 and 88,619.52 is: 132,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,030.72 : 448,469.68 = 88,619.52 : x
  2. Step 2: Convert to fraction form
    299,030.72/448,469.68 = 88,619.52/x
  3. Step 3: Cross multiply
    299,030.72x = 448,469.68 × 88,619.52
  4. Step 4: Simplify right side
    299,030.72x = 39,743,167,776.15
  5. Step 5: Solve for x
    x = 39,743,167,776.15/299,030.72
  6. Step 6: Final answer
    x = 132,906.64

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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.