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Finding the Fourth Proportional to 273,886.72, 410,752.28 and 86,893.36

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Solution

The fourth proportional to 273,886.72, 410,752.28 and 86,893.36 is: 130,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,886.72 : 410,752.28 = 86,893.36 : x
  2. Step 2: Convert to fraction form
    273,886.72/410,752.28 = 86,893.36/x
  3. Step 3: Cross multiply
    273,886.72x = 410,752.28 × 86,893.36
  4. Step 4: Simplify right side
    273,886.72x = 35,691,645,736.86
  5. Step 5: Solve for x
    x = 35,691,645,736.86/273,886.72
  6. Step 6: Final answer
    x = 130,315.36

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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.