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Finding the Fourth Proportional to 147,364.77, 220,889.76 and 84,048.56

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Solution

The fourth proportional to 147,364.77, 220,889.76 and 84,048.56 is: 125,983.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,364.77 : 220,889.76 = 84,048.56 : x
  2. Step 2: Convert to fraction form
    147,364.77/220,889.76 = 84,048.56/x
  3. Step 3: Cross multiply
    147,364.77x = 220,889.76 × 84,048.56
  4. Step 4: Simplify right side
    147,364.77x = 18,565,465,142.30
  5. Step 5: Solve for x
    x = 18,565,465,142.30/147,364.77
  6. Step 6: Final answer
    x = 125,983.06

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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.