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Finding the Fourth Proportional to 121,417.70, 167,484.03 and 94,517.60

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Solution

The fourth proportional to 121,417.70, 167,484.03 and 94,517.60 is: 130,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,417.70 : 167,484.03 = 94,517.60 : x
  2. Step 2: Convert to fraction form
    121,417.70/167,484.03 = 94,517.60/x
  3. Step 3: Cross multiply
    121,417.70x = 167,484.03 × 94,517.60
  4. Step 4: Simplify right side
    121,417.70x = 15,830,188,553.93
  5. Step 5: Solve for x
    x = 15,830,188,553.93/121,417.70
  6. Step 6: Final answer
    x = 130,377.93

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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.