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Finding the Fourth Proportional to 114,149.52, 157,499.64 and 68,815.44

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Solution

The fourth proportional to 114,149.52, 157,499.64 and 68,815.44 is: 94,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,149.52 : 157,499.64 = 68,815.44 : x
  2. Step 2: Convert to fraction form
    114,149.52/157,499.64 = 68,815.44/x
  3. Step 3: Cross multiply
    114,149.52x = 157,499.64 × 68,815.44
  4. Step 4: Simplify right side
    114,149.52x = 10,838,407,026.44
  5. Step 5: Solve for x
    x = 10,838,407,026.44/114,149.52
  6. Step 6: Final answer
    x = 94,949.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.