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Finding the Fourth Proportional to 57,350.53, 79,140.88 and 31,858.52

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Solution

The fourth proportional to 57,350.53, 79,140.88 and 31,858.52 is: 43,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,350.53 : 79,140.88 = 31,858.52 : x
  2. Step 2: Convert to fraction form
    57,350.53/79,140.88 = 31,858.52/x
  3. Step 3: Cross multiply
    57,350.53x = 79,140.88 × 31,858.52
  4. Step 4: Simplify right side
    57,350.53x = 2,521,310,952.42
  5. Step 5: Solve for x
    x = 2,521,310,952.42/57,350.53
  6. Step 6: Final answer
    x = 43,963.17

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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.