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Finding the Fourth Proportional to 121,462.51, 167,748.96 and 92,472.93

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Solution

The fourth proportional to 121,462.51, 167,748.96 and 92,472.93 is: 127,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,462.51 : 167,748.96 = 92,472.93 : x
  2. Step 2: Convert to fraction form
    121,462.51/167,748.96 = 92,472.93/x
  3. Step 3: Cross multiply
    121,462.51x = 167,748.96 × 92,472.93
  4. Step 4: Simplify right side
    121,462.51x = 15,512,237,835.65
  5. Step 5: Solve for x
    x = 15,512,237,835.65/121,462.51
  6. Step 6: Final answer
    x = 127,712.15

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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.