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Finding the Fourth Proportional to 174,991.60, 262,487.40 and 108,215.20

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Solution

The fourth proportional to 174,991.60, 262,487.40 and 108,215.20 is: 162,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,991.60 : 262,487.40 = 108,215.20 : x
  2. Step 2: Convert to fraction form
    174,991.60/262,487.40 = 108,215.20/x
  3. Step 3: Cross multiply
    174,991.60x = 262,487.40 × 108,215.20
  4. Step 4: Simplify right side
    174,991.60x = 28,405,126,488.48
  5. Step 5: Solve for x
    x = 28,405,126,488.48/174,991.60
  6. Step 6: Final answer
    x = 162,322.80

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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.