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Finding the Fourth Proportional to 112,542, 168,814.62 and 29,436

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Solution

The fourth proportional to 112,542, 168,814.62 and 29,436 is: 44,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,542 : 168,814.62 = 29,436 : x
  2. Step 2: Convert to fraction form
    112,542/168,814.62 = 29,436/x
  3. Step 3: Cross multiply
    112,542x = 168,814.62 × 29,436
  4. Step 4: Simplify right side
    112,542x = 4,969,227,154.32
  5. Step 5: Solve for x
    x = 4,969,227,154.32/112,542
  6. Step 6: Final answer
    x = 44,154.42

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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.