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Finding the Fourth Proportional to 171,396.40, 257,094.60 and 167,897.20

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Solution

The fourth proportional to 171,396.40, 257,094.60 and 167,897.20 is: 251,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,396.40 : 257,094.60 = 167,897.20 : x
  2. Step 2: Convert to fraction form
    171,396.40/257,094.60 = 167,897.20/x
  3. Step 3: Cross multiply
    171,396.40x = 257,094.60 × 167,897.20
  4. Step 4: Simplify right side
    171,396.40x = 43,165,463,475.12
  5. Step 5: Solve for x
    x = 43,165,463,475.12/171,396.40
  6. Step 6: Final answer
    x = 251,845.80

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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.