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Finding the Fourth Proportional to 157,618.62, 236,344.44 and 68,768.34

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Solution

The fourth proportional to 157,618.62, 236,344.44 and 68,768.34 is: 103,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,618.62 : 236,344.44 = 68,768.34 : x
  2. Step 2: Convert to fraction form
    157,618.62/236,344.44 = 68,768.34/x
  3. Step 3: Cross multiply
    157,618.62x = 236,344.44 × 68,768.34
  4. Step 4: Simplify right side
    157,618.62x = 16,253,014,807.03
  5. Step 5: Solve for x
    x = 16,253,014,807.03/157,618.62
  6. Step 6: Final answer
    x = 103,116.08

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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.