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Finding the Fourth Proportional to 57,690.92, 79,551.96 and 45,570.08

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Solution

The fourth proportional to 57,690.92, 79,551.96 and 45,570.08 is: 62,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,690.92 : 79,551.96 = 45,570.08 : x
  2. Step 2: Convert to fraction form
    57,690.92/79,551.96 = 45,570.08/x
  3. Step 3: Cross multiply
    57,690.92x = 79,551.96 × 45,570.08
  4. Step 4: Simplify right side
    57,690.92x = 3,625,189,181.36
  5. Step 5: Solve for x
    x = 3,625,189,181.36/57,690.92
  6. Step 6: Final answer
    x = 62,838.12

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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.