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Finding the Fourth Proportional to 68,333.36, 102,507.32 and 28,894.46

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Solution

The fourth proportional to 68,333.36, 102,507.32 and 28,894.46 is: 43,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,333.36 : 102,507.32 = 28,894.46 : x
  2. Step 2: Convert to fraction form
    68,333.36/102,507.32 = 28,894.46/x
  3. Step 3: Cross multiply
    68,333.36x = 102,507.32 × 28,894.46
  4. Step 4: Simplify right side
    68,333.36x = 2,961,893,217.15
  5. Step 5: Solve for x
    x = 2,961,893,217.15/68,333.36
  6. Step 6: Final answer
    x = 43,344.77

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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.