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Finding the Fourth Proportional to 171,404.40, 257,106.60 and 167,905.20

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Solution

The fourth proportional to 171,404.40, 257,106.60 and 167,905.20 is: 251,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,404.40 : 257,106.60 = 167,905.20 : x
  2. Step 2: Convert to fraction form
    171,404.40/257,106.60 = 167,905.20/x
  3. Step 3: Cross multiply
    171,404.40x = 257,106.60 × 167,905.20
  4. Step 4: Simplify right side
    171,404.40x = 43,169,535,094.32
  5. Step 5: Solve for x
    x = 43,169,535,094.32/171,404.40
  6. Step 6: Final answer
    x = 251,857.80

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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.