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Finding the Fourth Proportional to 244,029.40, 366,044.10 and 86,257.60

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Solution

The fourth proportional to 244,029.40, 366,044.10 and 86,257.60 is: 129,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,029.40 : 366,044.10 = 86,257.60 : x
  2. Step 2: Convert to fraction form
    244,029.40/366,044.10 = 86,257.60/x
  3. Step 3: Cross multiply
    244,029.40x = 366,044.10 × 86,257.60
  4. Step 4: Simplify right side
    244,029.40x = 31,574,085,560.16
  5. Step 5: Solve for x
    x = 31,574,085,560.16/244,029.40
  6. Step 6: Final answer
    x = 129,386.40

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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.