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Finding the Fourth Proportional to 262,493.20, 393,480.60 and 104,510.80

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Solution

The fourth proportional to 262,493.20, 393,480.60 and 104,510.80 is: 156,663.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,493.20 : 393,480.60 = 104,510.80 : x
  2. Step 2: Convert to fraction form
    262,493.20/393,480.60 = 104,510.80/x
  3. Step 3: Cross multiply
    262,493.20x = 393,480.60 × 104,510.80
  4. Step 4: Simplify right side
    262,493.20x = 41,122,972,290.48
  5. Step 5: Solve for x
    x = 41,122,972,290.48/262,493.20
  6. Step 6: Final answer
    x = 156,663.00

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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.