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Finding the Fourth Proportional to 131,101.80, 196,672.16 and 42,325.80

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Solution

The fourth proportional to 131,101.80, 196,672.16 and 42,325.80 is: 63,494.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,101.80 : 196,672.16 = 42,325.80 : x
  2. Step 2: Convert to fraction form
    131,101.80/196,672.16 = 42,325.80/x
  3. Step 3: Cross multiply
    131,101.80x = 196,672.16 × 42,325.80
  4. Step 4: Simplify right side
    131,101.80x = 8,324,306,509.73
  5. Step 5: Solve for x
    x = 8,324,306,509.73/131,101.80
  6. Step 6: Final answer
    x = 63,494.98

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1.5x scale

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.