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Finding the Fourth Proportional to 57,354.66, 79,146.57 and 31,862.64

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Solution

The fourth proportional to 57,354.66, 79,146.57 and 31,862.64 is: 43,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,354.66 : 79,146.57 = 31,862.64 : x
  2. Step 2: Convert to fraction form
    57,354.66/79,146.57 = 31,862.64/x
  3. Step 3: Cross multiply
    57,354.66x = 79,146.57 × 31,862.64
  4. Step 4: Simplify right side
    57,354.66x = 2,521,818,667.14
  5. Step 5: Solve for x
    x = 2,521,818,667.14/57,354.66
  6. Step 6: Final answer
    x = 43,968.85

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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.