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Finding the Fourth Proportional to 225,972.76, 311,840.85 and 125,370.76

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Solution

The fourth proportional to 225,972.76, 311,840.85 and 125,370.76 is: 173,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,972.76 : 311,840.85 = 125,370.76 : x
  2. Step 2: Convert to fraction form
    225,972.76/311,840.85 = 125,370.76/x
  3. Step 3: Cross multiply
    225,972.76x = 311,840.85 × 125,370.76
  4. Step 4: Simplify right side
    225,972.76x = 39,095,724,363.55
  5. Step 5: Solve for x
    x = 39,095,724,363.55/225,972.76
  6. Step 6: Final answer
    x = 173,010.78

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1.5x scale

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.