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Finding the Fourth Proportional to 225,309.63, 310,906.03 and 134,647.55

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Solution

The fourth proportional to 225,309.63, 310,906.03 and 134,647.55 is: 185,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,309.63 : 310,906.03 = 134,647.55 : x
  2. Step 2: Convert to fraction form
    225,309.63/310,906.03 = 134,647.55/x
  3. Step 3: Cross multiply
    225,309.63x = 310,906.03 × 134,647.55
  4. Step 4: Simplify right side
    225,309.63x = 41,862,734,746.94
  5. Step 5: Solve for x
    x = 41,862,734,746.94/225,309.63
  6. Step 6: Final answer
    x = 185,800.91

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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.