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Finding the Fourth Proportional to 526,992.97, 790,491.32 and 127,634.01

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Solution

The fourth proportional to 526,992.97, 790,491.32 and 127,634.01 is: 191,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,992.97 : 790,491.32 = 127,634.01 : x
  2. Step 2: Convert to fraction form
    526,992.97/790,491.32 = 127,634.01/x
  3. Step 3: Cross multiply
    526,992.97x = 790,491.32 × 127,634.01
  4. Step 4: Simplify right side
    526,992.97x = 100,893,577,360.88
  5. Step 5: Solve for x
    x = 100,893,577,360.88/526,992.97
  6. Step 6: Final answer
    x = 191,451.47

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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.