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Finding the Fourth Proportional to 79,232, 118,766.10 and 26,623.76

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Solution

The fourth proportional to 79,232, 118,766.10 and 26,623.76 is: 39,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,232 : 118,766.10 = 26,623.76 : x
  2. Step 2: Convert to fraction form
    79,232/118,766.10 = 26,623.76/x
  3. Step 3: Cross multiply
    79,232x = 118,766.10 × 26,623.76
  4. Step 4: Simplify right side
    79,232x = 3,162,000,142.54
  5. Step 5: Solve for x
    x = 3,162,000,142.54/79,232
  6. Step 6: Final answer
    x = 39,908.12

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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.