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Finding the Fourth Proportional to 299,206.20, 448,031.70 and 236,479.80

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Solution

The fourth proportional to 299,206.20, 448,031.70 and 236,479.80 is: 354,105.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,206.20 : 448,031.70 = 236,479.80 : x
  2. Step 2: Convert to fraction form
    299,206.20/448,031.70 = 236,479.80/x
  3. Step 3: Cross multiply
    299,206.20x = 448,031.70 × 236,479.80
  4. Step 4: Simplify right side
    299,206.20x = 105,950,446,809.66
  5. Step 5: Solve for x
    x = 105,950,446,809.66/299,206.20
  6. Step 6: Final answer
    x = 354,105.12

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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.