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Finding the Fourth Proportional to 84,476.52, 126,714.78 and 25,310.88

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Solution

The fourth proportional to 84,476.52, 126,714.78 and 25,310.88 is: 37,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,476.52 : 126,714.78 = 25,310.88 : x
  2. Step 2: Convert to fraction form
    84,476.52/126,714.78 = 25,310.88/x
  3. Step 3: Cross multiply
    84,476.52x = 126,714.78 × 25,310.88
  4. Step 4: Simplify right side
    84,476.52x = 3,207,262,590.81
  5. Step 5: Solve for x
    x = 3,207,262,590.81/84,476.52
  6. Step 6: Final answer
    x = 37,966.32

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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.