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Finding the Fourth Proportional to 68,054.69, 102,102.80 and 34,798.11

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Solution

The fourth proportional to 68,054.69, 102,102.80 and 34,798.11 is: 52,207.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,054.69 : 102,102.80 = 34,798.11 : x
  2. Step 2: Convert to fraction form
    68,054.69/102,102.80 = 34,798.11/x
  3. Step 3: Cross multiply
    68,054.69x = 102,102.80 × 34,798.11
  4. Step 4: Simplify right side
    68,054.69x = 3,552,985,063.93
  5. Step 5: Solve for x
    x = 3,552,985,063.93/68,054.69
  6. Step 6: Final answer
    x = 52,207.79

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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.