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Finding the Fourth Proportional to 126,174.98, 189,301.95 and 37,428.95

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Solution

The fourth proportional to 126,174.98, 189,301.95 and 37,428.95 is: 56,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,174.98 : 189,301.95 = 37,428.95 : x
  2. Step 2: Convert to fraction form
    126,174.98/189,301.95 = 37,428.95/x
  3. Step 3: Cross multiply
    126,174.98x = 189,301.95 × 37,428.95
  4. Step 4: Simplify right side
    126,174.98x = 7,085,373,694.71
  5. Step 5: Solve for x
    x = 7,085,373,694.71/126,174.98
  6. Step 6: Final answer
    x = 56,155.14

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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.