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Finding the Fourth Proportional to 167,144.54, 250,717.35 and 42,485.54

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Solution

The fourth proportional to 167,144.54, 250,717.35 and 42,485.54 is: 63,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,144.54 : 250,717.35 = 42,485.54 : x
  2. Step 2: Convert to fraction form
    167,144.54/250,717.35 = 42,485.54/x
  3. Step 3: Cross multiply
    167,144.54x = 250,717.35 × 42,485.54
  4. Step 4: Simplify right side
    167,144.54x = 10,651,862,002.12
  5. Step 5: Solve for x
    x = 10,651,862,002.12/167,144.54
  6. Step 6: Final answer
    x = 63,728.45

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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.