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Finding the Fourth Proportional to 70,529.28, 97,331.07 and 38,699.33

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Solution

The fourth proportional to 70,529.28, 97,331.07 and 38,699.33 is: 53,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,529.28 : 97,331.07 = 38,699.33 : x
  2. Step 2: Convert to fraction form
    70,529.28/97,331.07 = 38,699.33/x
  3. Step 3: Cross multiply
    70,529.28x = 97,331.07 × 38,699.33
  4. Step 4: Simplify right side
    70,529.28x = 3,766,646,710.53
  5. Step 5: Solve for x
    x = 3,766,646,710.53/70,529.28
  6. Step 6: Final answer
    x = 53,405.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.