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Finding the Fourth Proportional to 248,686.20, 373,029.30 and 173,890.80

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Solution

The fourth proportional to 248,686.20, 373,029.30 and 173,890.80 is: 260,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,686.20 : 373,029.30 = 173,890.80 : x
  2. Step 2: Convert to fraction form
    248,686.20/373,029.30 = 173,890.80/x
  3. Step 3: Cross multiply
    248,686.20x = 373,029.30 × 173,890.80
  4. Step 4: Simplify right side
    248,686.20x = 64,866,363,400.44
  5. Step 5: Solve for x
    x = 64,866,363,400.44/248,686.20
  6. Step 6: Final answer
    x = 260,836.20

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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.