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Finding the Fourth Proportional to 70,442.78, 97,221 and 43,593.95

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Solution

The fourth proportional to 70,442.78, 97,221 and 43,593.95 is: 60,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,442.78 : 97,221 = 43,593.95 : x
  2. Step 2: Convert to fraction form
    70,442.78/97,221 = 43,593.95/x
  3. Step 3: Cross multiply
    70,442.78x = 97,221 × 43,593.95
  4. Step 4: Simplify right side
    70,442.78x = 4,238,246,926.85
  5. Step 5: Solve for x
    x = 4,238,246,926.85/70,442.78
  6. Step 6: Final answer
    x = 60,165.81

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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.