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Finding the Fourth Proportional to 82,903.57, 124,379.57 and 26,742.43

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Solution

The fourth proportional to 82,903.57, 124,379.57 and 26,742.43 is: 40,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,903.57 : 124,379.57 = 26,742.43 : x
  2. Step 2: Convert to fraction form
    82,903.57/124,379.57 = 26,742.43/x
  3. Step 3: Cross multiply
    82,903.57x = 124,379.57 × 26,742.43
  4. Step 4: Simplify right side
    82,903.57x = 3,326,211,944.16
  5. Step 5: Solve for x
    x = 3,326,211,944.16/82,903.57
  6. Step 6: Final answer
    x = 40,121.46

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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.