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Finding the Fourth Proportional to 83,570.81, 125,389.01 and 36,790.88

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Solution

The fourth proportional to 83,570.81, 125,389.01 and 36,790.88 is: 55,200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,570.81 : 125,389.01 = 36,790.88 : x
  2. Step 2: Convert to fraction form
    83,570.81/125,389.01 = 36,790.88/x
  3. Step 3: Cross multiply
    83,570.81x = 125,389.01 × 36,790.88
  4. Step 4: Simplify right side
    83,570.81x = 4,613,171,485.26
  5. Step 5: Solve for x
    x = 4,613,171,485.26/83,570.81
  6. Step 6: Final answer
    x = 55,200.75

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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.