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Finding the Fourth Proportional to 121,046.44, 167,046.42 and 70,774.60

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Solution

The fourth proportional to 121,046.44, 167,046.42 and 70,774.60 is: 97,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,046.44 : 167,046.42 = 70,774.60 : x
  2. Step 2: Convert to fraction form
    121,046.44/167,046.42 = 70,774.60/x
  3. Step 3: Cross multiply
    121,046.44x = 167,046.42 × 70,774.60
  4. Step 4: Simplify right side
    121,046.44x = 11,822,643,556.93
  5. Step 5: Solve for x
    x = 11,822,643,556.93/121,046.44
  6. Step 6: Final answer
    x = 97,670.31

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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.