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Finding the Fourth Proportional to 352,987.89, 487,127.06 and 191,842.95

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Solution

The fourth proportional to 352,987.89, 487,127.06 and 191,842.95 is: 264,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,987.89 : 487,127.06 = 191,842.95 : x
  2. Step 2: Convert to fraction form
    352,987.89/487,127.06 = 191,842.95/x
  3. Step 3: Cross multiply
    352,987.89x = 487,127.06 × 191,842.95
  4. Step 4: Simplify right side
    352,987.89x = 93,451,892,215.23
  5. Step 5: Solve for x
    x = 93,451,892,215.23/352,987.89
  6. Step 6: Final answer
    x = 264,745.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.