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Finding the Fourth Proportional to 121,461.51, 167,747.58 and 92,471.93

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Solution

The fourth proportional to 121,461.51, 167,747.58 and 92,471.93 is: 127,710.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,461.51 : 167,747.58 = 92,471.93 : x
  2. Step 2: Convert to fraction form
    121,461.51/167,747.58 = 92,471.93/x
  3. Step 3: Cross multiply
    121,461.51x = 167,747.58 × 92,471.93
  4. Step 4: Simplify right side
    121,461.51x = 15,511,941,174.33
  5. Step 5: Solve for x
    x = 15,511,941,174.33/121,461.51
  6. Step 6: Final answer
    x = 127,710.76

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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.