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Finding the Fourth Proportional to 167,718.40, 251,059.20 and 97,388.80

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Solution

The fourth proportional to 167,718.40, 251,059.20 and 97,388.80 is: 145,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,718.40 : 251,059.20 = 97,388.80 : x
  2. Step 2: Convert to fraction form
    167,718.40/251,059.20 = 97,388.80/x
  3. Step 3: Cross multiply
    167,718.40x = 251,059.20 × 97,388.80
  4. Step 4: Simplify right side
    167,718.40x = 24,450,354,216.96
  5. Step 5: Solve for x
    x = 24,450,354,216.96/167,718.40
  6. Step 6: Final answer
    x = 145,782.18

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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.