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Finding the Fourth Proportional to 58,917.20, 81,300.12 and 35,049.20

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Solution

The fourth proportional to 58,917.20, 81,300.12 and 35,049.20 is: 48,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,917.20 : 81,300.12 = 35,049.20 : x
  2. Step 2: Convert to fraction form
    58,917.20/81,300.12 = 35,049.20/x
  3. Step 3: Cross multiply
    58,917.20x = 81,300.12 × 35,049.20
  4. Step 4: Simplify right side
    58,917.20x = 2,849,504,165.90
  5. Step 5: Solve for x
    x = 2,849,504,165.90/58,917.20
  6. Step 6: Final answer
    x = 48,364.56

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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.