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Finding the Fourth Proportional to 79,260.53, 109,380.41 and 45,273.52

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Solution

The fourth proportional to 79,260.53, 109,380.41 and 45,273.52 is: 62,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,260.53 : 109,380.41 = 45,273.52 : x
  2. Step 2: Convert to fraction form
    79,260.53/109,380.41 = 45,273.52/x
  3. Step 3: Cross multiply
    79,260.53x = 109,380.41 × 45,273.52
  4. Step 4: Simplify right side
    79,260.53x = 4,952,036,297.06
  5. Step 5: Solve for x
    x = 4,952,036,297.06/79,260.53
  6. Step 6: Final answer
    x = 62,477.96

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1.5x scale

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.