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Finding the Fourth Proportional to 132,521.50, 198,739.85 and 43,758.46

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Solution

The fourth proportional to 132,521.50, 198,739.85 and 43,758.46 is: 65,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,521.50 : 198,739.85 = 43,758.46 : x
  2. Step 2: Convert to fraction form
    132,521.50/198,739.85 = 43,758.46/x
  3. Step 3: Cross multiply
    132,521.50x = 198,739.85 × 43,758.46
  4. Step 4: Simplify right side
    132,521.50x = 8,696,548,782.93
  5. Step 5: Solve for x
    x = 8,696,548,782.93/132,521.50
  6. Step 6: Final answer
    x = 65,623.68

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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.