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Finding the Fourth Proportional to 131,598.66, 197,473.23 and 55,691.22

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Solution

The fourth proportional to 131,598.66, 197,473.23 and 55,691.22 is: 83,568.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,598.66 : 197,473.23 = 55,691.22 : x
  2. Step 2: Convert to fraction form
    131,598.66/197,473.23 = 55,691.22/x
  3. Step 3: Cross multiply
    131,598.66x = 197,473.23 × 55,691.22
  4. Step 4: Simplify right side
    131,598.66x = 10,997,525,096.04
  5. Step 5: Solve for x
    x = 10,997,525,096.04/131,598.66
  6. Step 6: Final answer
    x = 83,568.67

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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.