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Finding the Fourth Proportional to 83,606.44, 125,426.94 and 28,201

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Solution

The fourth proportional to 83,606.44, 125,426.94 and 28,201 is: 42,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,606.44 : 125,426.94 = 28,201 : x
  2. Step 2: Convert to fraction form
    83,606.44/125,426.94 = 28,201/x
  3. Step 3: Cross multiply
    83,606.44x = 125,426.94 × 28,201
  4. Step 4: Simplify right side
    83,606.44x = 3,537,165,134.94
  5. Step 5: Solve for x
    x = 3,537,165,134.94/83,606.44
  6. Step 6: Final answer
    x = 42,307.33

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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.