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Finding the Fourth Proportional to 352,987.65, 487,126.04 and 191,842.79

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Solution

The fourth proportional to 352,987.65, 487,126.04 and 191,842.79 is: 264,744.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,987.65 : 487,126.04 = 191,842.79 : x
  2. Step 2: Convert to fraction form
    352,987.65/487,126.04 = 191,842.79/x
  3. Step 3: Cross multiply
    352,987.65x = 487,126.04 × 191,842.79
  4. Step 4: Simplify right side
    352,987.65x = 93,451,615,200.41
  5. Step 5: Solve for x
    x = 93,451,615,200.41/352,987.65
  6. Step 6: Final answer
    x = 264,744.72

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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.