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Finding the Fourth Proportional to 70,355.49, 97,089.64 and 38,524.41

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Solution

The fourth proportional to 70,355.49, 97,089.64 and 38,524.41 is: 53,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,355.49 : 97,089.64 = 38,524.41 : x
  2. Step 2: Convert to fraction form
    70,355.49/97,089.64 = 38,524.41/x
  3. Step 3: Cross multiply
    70,355.49x = 97,089.64 × 38,524.41
  4. Step 4: Simplify right side
    70,355.49x = 3,740,321,001.80
  5. Step 5: Solve for x
    x = 3,740,321,001.80/70,355.49
  6. Step 6: Final answer
    x = 53,163.17

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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.