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Finding the Fourth Proportional to 131,996.76, 197,991.88 and 38,503.32

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Solution

The fourth proportional to 131,996.76, 197,991.88 and 38,503.32 is: 57,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,996.76 : 197,991.88 = 38,503.32 : x
  2. Step 2: Convert to fraction form
    131,996.76/197,991.88 = 38,503.32/x
  3. Step 3: Cross multiply
    131,996.76x = 197,991.88 × 38,503.32
  4. Step 4: Simplify right side
    131,996.76x = 7,623,344,713.04
  5. Step 5: Solve for x
    x = 7,623,344,713.04/131,996.76
  6. Step 6: Final answer
    x = 57,754.03

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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.