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Finding the Fourth Proportional to 334,070.20, 501,105.30 and 219,908.80

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Solution

The fourth proportional to 334,070.20, 501,105.30 and 219,908.80 is: 329,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,070.20 : 501,105.30 = 219,908.80 : x
  2. Step 2: Convert to fraction form
    334,070.20/501,105.30 = 219,908.80/x
  3. Step 3: Cross multiply
    334,070.20x = 501,105.30 × 219,908.80
  4. Step 4: Simplify right side
    334,070.20x = 110,197,465,196.64
  5. Step 5: Solve for x
    x = 110,197,465,196.64/334,070.20
  6. Step 6: Final answer
    x = 329,863.20

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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.