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Finding the Fourth Proportional to 68,326.60, 102,509.10 and 33,267.40

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Solution

The fourth proportional to 68,326.60, 102,509.10 and 33,267.40 is: 49,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,326.60 : 102,509.10 = 33,267.40 : x
  2. Step 2: Convert to fraction form
    68,326.60/102,509.10 = 33,267.40/x
  3. Step 3: Cross multiply
    68,326.60x = 102,509.10 × 33,267.40
  4. Step 4: Simplify right side
    68,326.60x = 3,410,211,233.34
  5. Step 5: Solve for x
    x = 3,410,211,233.34/68,326.60
  6. Step 6: Final answer
    x = 49,910.45

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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.