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Finding the Fourth Proportional to 482,688.45, 724,067.30 and 127,698.25

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Solution

The fourth proportional to 482,688.45, 724,067.30 and 127,698.25 is: 191,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,688.45 : 724,067.30 = 127,698.25 : x
  2. Step 2: Convert to fraction form
    482,688.45/724,067.30 = 127,698.25/x
  3. Step 3: Cross multiply
    482,688.45x = 724,067.30 × 127,698.25
  4. Step 4: Simplify right side
    482,688.45x = 92,462,127,092.23
  5. Step 5: Solve for x
    x = 92,462,127,092.23/482,688.45
  6. Step 6: Final answer
    x = 191,556.54

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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.