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Finding the Fourth Proportional to 80,697.68, 111,332.16 and 50,056.56

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Solution

The fourth proportional to 80,697.68, 111,332.16 and 50,056.56 is: 69,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,697.68 : 111,332.16 = 50,056.56 : x
  2. Step 2: Convert to fraction form
    80,697.68/111,332.16 = 50,056.56/x
  3. Step 3: Cross multiply
    80,697.68x = 111,332.16 × 50,056.56
  4. Step 4: Simplify right side
    80,697.68x = 5,572,904,946.97
  5. Step 5: Solve for x
    x = 5,572,904,946.97/80,697.68
  6. Step 6: Final answer
    x = 69,059.05

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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.