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Finding the Fourth Proportional to 131,271.66, 196,866.18 and 42,504.66

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Solution

The fourth proportional to 131,271.66, 196,866.18 and 42,504.66 is: 63,743.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,271.66 : 196,866.18 = 42,504.66 : x
  2. Step 2: Convert to fraction form
    131,271.66/196,866.18 = 42,504.66/x
  3. Step 3: Cross multiply
    131,271.66x = 196,866.18 × 42,504.66
  4. Step 4: Simplify right side
    131,271.66x = 8,367,730,046.40
  5. Step 5: Solve for x
    x = 8,367,730,046.40/131,271.66
  6. Step 6: Final answer
    x = 63,743.61

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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.