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Finding the Fourth Proportional to 68,336.51, 102,518.60 and 28,893.56

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Solution

The fourth proportional to 68,336.51, 102,518.60 and 28,893.56 is: 43,346.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,336.51 : 102,518.60 = 28,893.56 : x
  2. Step 2: Convert to fraction form
    68,336.51/102,518.60 = 28,893.56/x
  3. Step 3: Cross multiply
    68,336.51x = 102,518.60 × 28,893.56
  4. Step 4: Simplify right side
    68,336.51x = 2,962,126,663.16
  5. Step 5: Solve for x
    x = 2,962,126,663.16/68,336.51
  6. Step 6: Final answer
    x = 43,346.18

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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.