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Finding the Fourth Proportional to 361,760.80, 542,106.60 and 262,130.80

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Solution

The fourth proportional to 361,760.80, 542,106.60 and 262,130.80 is: 392,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,760.80 : 542,106.60 = 262,130.80 : x
  2. Step 2: Convert to fraction form
    361,760.80/542,106.60 = 262,130.80/x
  3. Step 3: Cross multiply
    361,760.80x = 542,106.60 × 262,130.80
  4. Step 4: Simplify right side
    361,760.80x = 142,102,836,743.28
  5. Step 5: Solve for x
    x = 142,102,836,743.28/361,760.80
  6. Step 6: Final answer
    x = 392,808.83

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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.