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Finding the Fourth Proportional to 69,423, 104,134.80 and 16,832.58

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Solution

The fourth proportional to 69,423, 104,134.80 and 16,832.58 is: 25,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,423 : 104,134.80 = 16,832.58 : x
  2. Step 2: Convert to fraction form
    69,423/104,134.80 = 16,832.58/x
  3. Step 3: Cross multiply
    69,423x = 104,134.80 × 16,832.58
  4. Step 4: Simplify right side
    69,423x = 1,752,857,351.78
  5. Step 5: Solve for x
    x = 1,752,857,351.78/69,423
  6. Step 6: Final answer
    x = 25,248.94

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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.