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Finding the Fourth Proportional to 83,446.14, 115,157.49 and 45,720.39

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Solution

The fourth proportional to 83,446.14, 115,157.49 and 45,720.39 is: 63,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,446.14 : 115,157.49 = 45,720.39 : x
  2. Step 2: Convert to fraction form
    83,446.14/115,157.49 = 45,720.39/x
  3. Step 3: Cross multiply
    83,446.14x = 115,157.49 × 45,720.39
  4. Step 4: Simplify right side
    83,446.14x = 5,265,045,354.22
  5. Step 5: Solve for x
    x = 5,265,045,354.22/83,446.14
  6. Step 6: Final answer
    x = 63,095.13

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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.