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Finding the Fourth Proportional to 131,145.30, 196,719.12 and 37,651.02

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Solution

The fourth proportional to 131,145.30, 196,719.12 and 37,651.02 is: 56,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,145.30 : 196,719.12 = 37,651.02 : x
  2. Step 2: Convert to fraction form
    131,145.30/196,719.12 = 37,651.02/x
  3. Step 3: Cross multiply
    131,145.30x = 196,719.12 × 37,651.02
  4. Step 4: Simplify right side
    131,145.30x = 7,406,675,521.50
  5. Step 5: Solve for x
    x = 7,406,675,521.50/131,145.30
  6. Step 6: Final answer
    x = 56,476.87

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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.