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Finding the Fourth Proportional to 88,259.88, 132,388.66 and 21,700.58

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Solution

The fourth proportional to 88,259.88, 132,388.66 and 21,700.58 is: 32,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,259.88 : 132,388.66 = 21,700.58 : x
  2. Step 2: Convert to fraction form
    88,259.88/132,388.66 = 21,700.58/x
  3. Step 3: Cross multiply
    88,259.88x = 132,388.66 × 21,700.58
  4. Step 4: Simplify right side
    88,259.88x = 2,872,910,707.42
  5. Step 5: Solve for x
    x = 2,872,910,707.42/88,259.88
  6. Step 6: Final answer
    x = 32,550.58

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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.