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Finding the Fourth Proportional to 174,369.16, 239,057.21 and 171,219.88

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Solution

The fourth proportional to 174,369.16, 239,057.21 and 171,219.88 is: 234,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,369.16 : 239,057.21 = 171,219.88 : x
  2. Step 2: Convert to fraction form
    174,369.16/239,057.21 = 171,219.88/x
  3. Step 3: Cross multiply
    174,369.16x = 239,057.21 × 171,219.88
  4. Step 4: Simplify right side
    174,369.16x = 40,931,346,809.33
  5. Step 5: Solve for x
    x = 40,931,346,809.33/174,369.16
  6. Step 6: Final answer
    x = 234,739.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.