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Finding the Fourth Proportional to 299,263.20, 448,894.80 and 133,051.20

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Solution

The fourth proportional to 299,263.20, 448,894.80 and 133,051.20 is: 199,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,263.20 : 448,894.80 = 133,051.20 : x
  2. Step 2: Convert to fraction form
    299,263.20/448,894.80 = 133,051.20/x
  3. Step 3: Cross multiply
    299,263.20x = 448,894.80 × 133,051.20
  4. Step 4: Simplify right side
    299,263.20x = 59,725,991,813.76
  5. Step 5: Solve for x
    x = 59,725,991,813.76/299,263.20
  6. Step 6: Final answer
    x = 199,576.80

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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.