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Finding the Fourth Proportional to 126,697.32, 174,839.64 and 69,336.42

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Solution

The fourth proportional to 126,697.32, 174,839.64 and 69,336.42 is: 95,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,697.32 : 174,839.64 = 69,336.42 : x
  2. Step 2: Convert to fraction form
    126,697.32/174,839.64 = 69,336.42/x
  3. Step 3: Cross multiply
    126,697.32x = 174,839.64 × 69,336.42
  4. Step 4: Simplify right side
    126,697.32x = 12,122,754,711.69
  5. Step 5: Solve for x
    x = 12,122,754,711.69/126,697.32
  6. Step 6: Final answer
    x = 95,682.80

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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.