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Finding the Fourth Proportional to 157,394.88, 236,136.24 and 68,656.32

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Solution

The fourth proportional to 157,394.88, 236,136.24 and 68,656.32 is: 103,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,394.88 : 236,136.24 = 68,656.32 : x
  2. Step 2: Convert to fraction form
    157,394.88/236,136.24 = 68,656.32/x
  3. Step 3: Cross multiply
    157,394.88x = 236,136.24 × 68,656.32
  4. Step 4: Simplify right side
    157,394.88x = 16,212,245,257.04
  5. Step 5: Solve for x
    x = 16,212,245,257.04/157,394.88
  6. Step 6: Final answer
    x = 103,003.64

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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.