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Finding the Fourth Proportional to 79,548.85, 109,766.85 and 49,323.15

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Solution

The fourth proportional to 79,548.85, 109,766.85 and 49,323.15 is: 68,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,548.85 : 109,766.85 = 49,323.15 : x
  2. Step 2: Convert to fraction form
    79,548.85/109,766.85 = 49,323.15/x
  3. Step 3: Cross multiply
    79,548.85x = 109,766.85 × 49,323.15
  4. Step 4: Simplify right side
    79,548.85x = 5,414,046,807.58
  5. Step 5: Solve for x
    x = 5,414,046,807.58/79,548.85
  6. Step 6: Final answer
    x = 68,059.40

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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.