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Finding the Fourth Proportional to 127,572.94, 191,351.73 and 56,474.77

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Solution

The fourth proportional to 127,572.94, 191,351.73 and 56,474.77 is: 84,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,572.94 : 191,351.73 = 56,474.77 : x
  2. Step 2: Convert to fraction form
    127,572.94/191,351.73 = 56,474.77/x
  3. Step 3: Cross multiply
    127,572.94x = 191,351.73 × 56,474.77
  4. Step 4: Simplify right side
    127,572.94x = 10,806,544,940.85
  5. Step 5: Solve for x
    x = 10,806,544,940.85/127,572.94
  6. Step 6: Final answer
    x = 84,708.76

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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.