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Finding the Fourth Proportional to 225,309.45, 310,905.77 and 134,647.36

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Solution

The fourth proportional to 225,309.45, 310,905.77 and 134,647.36 is: 185,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,309.45 : 310,905.77 = 134,647.36 : x
  2. Step 2: Convert to fraction form
    225,309.45/310,905.77 = 134,647.36/x
  3. Step 3: Cross multiply
    225,309.45x = 310,905.77 × 134,647.36
  4. Step 4: Simplify right side
    225,309.45x = 41,862,641,612.05
  5. Step 5: Solve for x
    x = 41,862,641,612.05/225,309.45
  6. Step 6: Final answer
    x = 185,800.65

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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.