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Finding the Fourth Proportional to 57,541.86, 79,452.81 and 45,002.34

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Solution

The fourth proportional to 57,541.86, 79,452.81 and 45,002.34 is: 62,138.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,541.86 : 79,452.81 = 45,002.34 : x
  2. Step 2: Convert to fraction form
    57,541.86/79,452.81 = 45,002.34/x
  3. Step 3: Cross multiply
    57,541.86x = 79,452.81 × 45,002.34
  4. Step 4: Simplify right side
    57,541.86x = 3,575,562,369.58
  5. Step 5: Solve for x
    x = 3,575,562,369.58/57,541.86
  6. Step 6: Final answer
    x = 62,138.46

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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.