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Finding the Fourth Proportional to 80,411.44, 111,005.88 and 53,598.64

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Solution

The fourth proportional to 80,411.44, 111,005.88 and 53,598.64 is: 73,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,411.44 : 111,005.88 = 53,598.64 : x
  2. Step 2: Convert to fraction form
    80,411.44/111,005.88 = 53,598.64/x
  3. Step 3: Cross multiply
    80,411.44x = 111,005.88 × 53,598.64
  4. Step 4: Simplify right side
    80,411.44x = 5,949,764,200.00
  5. Step 5: Solve for x
    x = 5,949,764,200.00/80,411.44
  6. Step 6: Final answer
    x = 73,991.51

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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.