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Finding the Fourth Proportional to 79,206.60, 118,526.80 and 68,799.24

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Solution

The fourth proportional to 79,206.60, 118,526.80 and 68,799.24 is: 102,952.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,206.60 : 118,526.80 = 68,799.24 : x
  2. Step 2: Convert to fraction form
    79,206.60/118,526.80 = 68,799.24/x
  3. Step 3: Cross multiply
    79,206.60x = 118,526.80 × 68,799.24
  4. Step 4: Simplify right side
    79,206.60x = 8,154,553,883.95
  5. Step 5: Solve for x
    x = 8,154,553,883.95/79,206.60
  6. Step 6: Final answer
    x = 102,952.97

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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.