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Finding the Fourth Proportional to 79,357.77, 109,516.89 and 43,549.08

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Solution

The fourth proportional to 79,357.77, 109,516.89 and 43,549.08 is: 60,099.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,357.77 : 109,516.89 = 43,549.08 : x
  2. Step 2: Convert to fraction form
    79,357.77/109,516.89 = 43,549.08/x
  3. Step 3: Cross multiply
    79,357.77x = 109,516.89 × 43,549.08
  4. Step 4: Simplify right side
    79,357.77x = 4,769,359,803.96
  5. Step 5: Solve for x
    x = 4,769,359,803.96/79,357.77
  6. Step 6: Final answer
    x = 60,099.47

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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.