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Finding the Fourth Proportional to 79,264.76, 109,396.50 and 49,059.76

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Solution

The fourth proportional to 79,264.76, 109,396.50 and 49,059.76 is: 67,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,264.76 : 109,396.50 = 49,059.76 : x
  2. Step 2: Convert to fraction form
    79,264.76/109,396.50 = 49,059.76/x
  3. Step 3: Cross multiply
    79,264.76x = 109,396.50 × 49,059.76
  4. Step 4: Simplify right side
    79,264.76x = 5,366,966,034.84
  5. Step 5: Solve for x
    x = 5,366,966,034.84/79,264.76
  6. Step 6: Final answer
    x = 67,709.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.