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Finding the Fourth Proportional to 79,165.54, 109,248.61 and 42,867.38

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Solution

The fourth proportional to 79,165.54, 109,248.61 and 42,867.38 is: 59,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,165.54 : 109,248.61 = 42,867.38 : x
  2. Step 2: Convert to fraction form
    79,165.54/109,248.61 = 42,867.38/x
  3. Step 3: Cross multiply
    79,165.54x = 109,248.61 × 42,867.38
  4. Step 4: Simplify right side
    79,165.54x = 4,683,201,679.34
  5. Step 5: Solve for x
    x = 4,683,201,679.34/79,165.54
  6. Step 6: Final answer
    x = 59,157.07

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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.