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Finding the Fourth Proportional to 163,695.74, 225,927.93 and 120,897.56

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Solution

The fourth proportional to 163,695.74, 225,927.93 and 120,897.56 is: 166,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,695.74 : 225,927.93 = 120,897.56 : x
  2. Step 2: Convert to fraction form
    163,695.74/225,927.93 = 120,897.56/x
  3. Step 3: Cross multiply
    163,695.74x = 225,927.93 × 120,897.56
  4. Step 4: Simplify right side
    163,695.74x = 27,314,135,472.85
  5. Step 5: Solve for x
    x = 27,314,135,472.85/163,695.74
  6. Step 6: Final answer
    x = 166,859.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.