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Finding the Fourth Proportional to 83,291.33, 114,942.96 and 45,051.64

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Solution

The fourth proportional to 83,291.33, 114,942.96 and 45,051.64 is: 62,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,291.33 : 114,942.96 = 45,051.64 : x
  2. Step 2: Convert to fraction form
    83,291.33/114,942.96 = 45,051.64/x
  3. Step 3: Cross multiply
    83,291.33x = 114,942.96 × 45,051.64
  4. Step 4: Simplify right side
    83,291.33x = 5,178,368,567.10
  5. Step 5: Solve for x
    x = 5,178,368,567.10/83,291.33
  6. Step 6: Final answer
    x = 62,171.76

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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.