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Finding the Fourth Proportional to 57,556.74, 86,335.11 and 54,308.10

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Solution

The fourth proportional to 57,556.74, 86,335.11 and 54,308.10 is: 81,462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,556.74 : 86,335.11 = 54,308.10 : x
  2. Step 2: Convert to fraction form
    57,556.74/86,335.11 = 54,308.10/x
  3. Step 3: Cross multiply
    57,556.74x = 86,335.11 × 54,308.10
  4. Step 4: Simplify right side
    57,556.74x = 4,688,695,787.39
  5. Step 5: Solve for x
    x = 4,688,695,787.39/57,556.74
  6. Step 6: Final answer
    x = 81,462.15

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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.