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Finding the Fourth Proportional to 57,417.59, 86,027.97 and 45,607.79

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Solution

The fourth proportional to 57,417.59, 86,027.97 and 45,607.79 is: 68,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,417.59 : 86,027.97 = 45,607.79 : x
  2. Step 2: Convert to fraction form
    57,417.59/86,027.97 = 45,607.79/x
  3. Step 3: Cross multiply
    57,417.59x = 86,027.97 × 45,607.79
  4. Step 4: Simplify right side
    57,417.59x = 3,923,545,975.99
  5. Step 5: Solve for x
    x = 3,923,545,975.99/57,417.59
  6. Step 6: Final answer
    x = 68,333.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.