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Finding the Fourth Proportional to 131,339.94, 196,990.32 and 36,560.22

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Solution

The fourth proportional to 131,339.94, 196,990.32 and 36,560.22 is: 54,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,339.94 : 196,990.32 = 36,560.22 : x
  2. Step 2: Convert to fraction form
    131,339.94/196,990.32 = 36,560.22/x
  3. Step 3: Cross multiply
    131,339.94x = 196,990.32 × 36,560.22
  4. Step 4: Simplify right side
    131,339.94x = 7,202,009,437.07
  5. Step 5: Solve for x
    x = 7,202,009,437.07/131,339.94
  6. Step 6: Final answer
    x = 54,834.88

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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.