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Finding the Fourth Proportional to 70,902.54, 97,843.14 and 39,071.97

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Solution

The fourth proportional to 70,902.54, 97,843.14 and 39,071.97 is: 53,918.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,902.54 : 97,843.14 = 39,071.97 : x
  2. Step 2: Convert to fraction form
    70,902.54/97,843.14 = 39,071.97/x
  3. Step 3: Cross multiply
    70,902.54x = 97,843.14 × 39,071.97
  4. Step 4: Simplify right side
    70,902.54x = 3,822,924,230.79
  5. Step 5: Solve for x
    x = 3,822,924,230.79/70,902.54
  6. Step 6: Final answer
    x = 53,918.02

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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.