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Finding the Fourth Proportional to 194,649.66, 268,632.92 and 109,783.12

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Solution

The fourth proportional to 194,649.66, 268,632.92 and 109,783.12 is: 151,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,649.66 : 268,632.92 = 109,783.12 : x
  2. Step 2: Convert to fraction form
    194,649.66/268,632.92 = 109,783.12/x
  3. Step 3: Cross multiply
    194,649.66x = 268,632.92 × 109,783.12
  4. Step 4: Simplify right side
    194,649.66x = 29,491,360,092.31
  5. Step 5: Solve for x
    x = 29,491,360,092.31/194,649.66
  6. Step 6: Final answer
    x = 151,509.95

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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.