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Finding the Fourth Proportional to 79,947.66, 110,315.95 and 45,957.58

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Solution

The fourth proportional to 79,947.66, 110,315.95 and 45,957.58 is: 63,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,947.66 : 110,315.95 = 45,957.58 : x
  2. Step 2: Convert to fraction form
    79,947.66/110,315.95 = 45,957.58/x
  3. Step 3: Cross multiply
    79,947.66x = 110,315.95 × 45,957.58
  4. Step 4: Simplify right side
    79,947.66x = 5,069,854,097.40
  5. Step 5: Solve for x
    x = 5,069,854,097.40/79,947.66
  6. Step 6: Final answer
    x = 63,414.67

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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.