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Finding the Fourth Proportional to 355,956.28, 533,995.98 and 119,321.80

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Solution

The fourth proportional to 355,956.28, 533,995.98 and 119,321.80 is: 179,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,956.28 : 533,995.98 = 119,321.80 : x
  2. Step 2: Convert to fraction form
    355,956.28/533,995.98 = 119,321.80/x
  3. Step 3: Cross multiply
    355,956.28x = 533,995.98 × 119,321.80
  4. Step 4: Simplify right side
    355,956.28x = 63,717,361,526.36
  5. Step 5: Solve for x
    x = 63,717,361,526.36/355,956.28
  6. Step 6: Final answer
    x = 179,003.34

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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.