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Finding the Fourth Proportional to 79,245.55, 109,370.06 and 49,040.60

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Solution

The fourth proportional to 79,245.55, 109,370.06 and 49,040.60 is: 67,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.55 : 109,370.06 = 49,040.60 : x
  2. Step 2: Convert to fraction form
    79,245.55/109,370.06 = 49,040.60/x
  3. Step 3: Cross multiply
    79,245.55x = 109,370.06 × 49,040.60
  4. Step 4: Simplify right side
    79,245.55x = 5,363,573,166.42
  5. Step 5: Solve for x
    x = 5,363,573,166.42/79,245.55
  6. Step 6: Final answer
    x = 67,682.96

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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.