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Finding the Fourth Proportional to 174,989.60, 262,484.40 and 108,213.20

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Solution

The fourth proportional to 174,989.60, 262,484.40 and 108,213.20 is: 162,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,989.60 : 262,484.40 = 108,213.20 : x
  2. Step 2: Convert to fraction form
    174,989.60/262,484.40 = 108,213.20/x
  3. Step 3: Cross multiply
    174,989.60x = 262,484.40 × 108,213.20
  4. Step 4: Simplify right side
    174,989.60x = 28,404,276,874.08
  5. Step 5: Solve for x
    x = 28,404,276,874.08/174,989.60
  6. Step 6: Final answer
    x = 162,319.80

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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.