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Finding the Fourth Proportional to 294,522.40, 441,841.20 and 126,042.40

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Solution

The fourth proportional to 294,522.40, 441,841.20 and 126,042.40 is: 189,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,522.40 : 441,841.20 = 126,042.40 : x
  2. Step 2: Convert to fraction form
    294,522.40/441,841.20 = 126,042.40/x
  3. Step 3: Cross multiply
    294,522.40x = 441,841.20 × 126,042.40
  4. Step 4: Simplify right side
    294,522.40x = 55,690,725,266.88
  5. Step 5: Solve for x
    x = 55,690,725,266.88/294,522.40
  6. Step 6: Final answer
    x = 189,088.25

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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.