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Finding the Fourth Proportional to 279,682.10, 419,523.15 and 92,693.60

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Solution

The fourth proportional to 279,682.10, 419,523.15 and 92,693.60 is: 139,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,682.10 : 419,523.15 = 92,693.60 : x
  2. Step 2: Convert to fraction form
    279,682.10/419,523.15 = 92,693.60/x
  3. Step 3: Cross multiply
    279,682.10x = 419,523.15 × 92,693.60
  4. Step 4: Simplify right side
    279,682.10x = 38,887,111,056.84
  5. Step 5: Solve for x
    x = 38,887,111,056.84/279,682.10
  6. Step 6: Final answer
    x = 139,040.40

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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.