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Finding the Fourth Proportional to 79,147.16, 109,228.83 and 45,156.39

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Solution

The fourth proportional to 79,147.16, 109,228.83 and 45,156.39 is: 62,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,147.16 : 109,228.83 = 45,156.39 : x
  2. Step 2: Convert to fraction form
    79,147.16/109,228.83 = 45,156.39/x
  3. Step 3: Cross multiply
    79,147.16x = 109,228.83 × 45,156.39
  4. Step 4: Simplify right side
    79,147.16x = 4,932,380,116.40
  5. Step 5: Solve for x
    x = 4,932,380,116.40/79,147.16
  6. Step 6: Final answer
    x = 62,319.11

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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.