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Finding the Fourth Proportional to 57,498.65, 86,133.14 and 45,672.44

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Solution

The fourth proportional to 57,498.65, 86,133.14 and 45,672.44 is: 68,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,498.65 : 86,133.14 = 45,672.44 : x
  2. Step 2: Convert to fraction form
    57,498.65/86,133.14 = 45,672.44/x
  3. Step 3: Cross multiply
    57,498.65x = 86,133.14 × 45,672.44
  4. Step 4: Simplify right side
    57,498.65x = 3,933,910,009.63
  5. Step 5: Solve for x
    x = 3,933,910,009.63/57,498.65
  6. Step 6: Final answer
    x = 68,417.44

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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.