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Finding the Fourth Proportional to 57,343.95, 79,131.94 and 31,851.95

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Solution

The fourth proportional to 57,343.95, 79,131.94 and 31,851.95 is: 43,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,343.95 : 79,131.94 = 31,851.95 : x
  2. Step 2: Convert to fraction form
    57,343.95/79,131.94 = 31,851.95/x
  3. Step 3: Cross multiply
    57,343.95x = 79,131.94 × 31,851.95
  4. Step 4: Simplify right side
    57,343.95x = 2,520,506,437.02
  5. Step 5: Solve for x
    x = 2,520,506,437.02/57,343.95
  6. Step 6: Final answer
    x = 43,954.19

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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.