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Finding the Fourth Proportional to 299,205.20, 448,030.20 and 236,478.80

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Solution

The fourth proportional to 299,205.20, 448,030.20 and 236,478.80 is: 354,103.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,205.20 : 448,030.20 = 236,478.80 : x
  2. Step 2: Convert to fraction form
    299,205.20/448,030.20 = 236,478.80/x
  3. Step 3: Cross multiply
    299,205.20x = 448,030.20 × 236,478.80
  4. Step 4: Simplify right side
    299,205.20x = 105,949,644,059.76
  5. Step 5: Solve for x
    x = 105,949,644,059.76/299,205.20
  6. Step 6: Final answer
    x = 354,103.62

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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.