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Finding the Fourth Proportional to 57,652.08, 79,559.72 and 31,156.08

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Solution

The fourth proportional to 57,652.08, 79,559.72 and 31,156.08 is: 42,995.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,652.08 : 79,559.72 = 31,156.08 : x
  2. Step 2: Convert to fraction form
    57,652.08/79,559.72 = 31,156.08/x
  3. Step 3: Cross multiply
    57,652.08x = 79,559.72 × 31,156.08
  4. Step 4: Simplify right side
    57,652.08x = 2,478,769,001.10
  5. Step 5: Solve for x
    x = 2,478,769,001.10/57,652.08
  6. Step 6: Final answer
    x = 42,995.31

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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.