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Finding the Fourth Proportional to 68,070.45, 102,106.62 and 25,952.79

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Solution

The fourth proportional to 68,070.45, 102,106.62 and 25,952.79 is: 38,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,070.45 : 102,106.62 = 25,952.79 : x
  2. Step 2: Convert to fraction form
    68,070.45/102,106.62 = 25,952.79/x
  3. Step 3: Cross multiply
    68,070.45x = 102,106.62 × 25,952.79
  4. Step 4: Simplify right side
    68,070.45x = 2,649,951,666.47
  5. Step 5: Solve for x
    x = 2,649,951,666.47/68,070.45
  6. Step 6: Final answer
    x = 38,929.55

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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.