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Finding the Fourth Proportional to 353,004.90, 487,150.50 and 191,859.96

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Solution

The fourth proportional to 353,004.90, 487,150.50 and 191,859.96 is: 264,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,004.90 : 487,150.50 = 191,859.96 : x
  2. Step 2: Convert to fraction form
    353,004.90/487,150.50 = 191,859.96/x
  3. Step 3: Cross multiply
    353,004.90x = 487,150.50 × 191,859.96
  4. Step 4: Simplify right side
    353,004.90x = 93,464,675,443.98
  5. Step 5: Solve for x
    x = 93,464,675,443.98/353,004.90
  6. Step 6: Final answer
    x = 264,768.78

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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.