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Finding the Fourth Proportional to 73,253.20, 109,879.80 and 49,633.60

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Solution

The fourth proportional to 73,253.20, 109,879.80 and 49,633.60 is: 74,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,253.20 : 109,879.80 = 49,633.60 : x
  2. Step 2: Convert to fraction form
    73,253.20/109,879.80 = 49,633.60/x
  3. Step 3: Cross multiply
    73,253.20x = 109,879.80 × 49,633.60
  4. Step 4: Simplify right side
    73,253.20x = 5,453,730,041.28
  5. Step 5: Solve for x
    x = 5,453,730,041.28/73,253.20
  6. Step 6: Final answer
    x = 74,450.40

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1.5x scale

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.