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Finding the Fourth Proportional to 126,398.87, 189,598.29 and 37,650.07

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Solution

The fourth proportional to 126,398.87, 189,598.29 and 37,650.07 is: 56,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,398.87 : 189,598.29 = 37,650.07 : x
  2. Step 2: Convert to fraction form
    126,398.87/189,598.29 = 37,650.07/x
  3. Step 3: Cross multiply
    126,398.87x = 189,598.29 × 37,650.07
  4. Step 4: Simplify right side
    126,398.87x = 7,138,388,890.38
  5. Step 5: Solve for x
    x = 7,138,388,890.38/126,398.87
  6. Step 6: Final answer
    x = 56,475.10

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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.