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Finding the Fourth Proportional to 79,190.56, 109,252.90 and 48,966.20

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Solution

The fourth proportional to 79,190.56, 109,252.90 and 48,966.20 is: 67,554.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,190.56 : 109,252.90 = 48,966.20 : x
  2. Step 2: Convert to fraction form
    79,190.56/109,252.90 = 48,966.20/x
  3. Step 3: Cross multiply
    79,190.56x = 109,252.90 × 48,966.20
  4. Step 4: Simplify right side
    79,190.56x = 5,349,699,351.98
  5. Step 5: Solve for x
    x = 5,349,699,351.98/79,190.56
  6. Step 6: Final answer
    x = 67,554.76

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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.