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Finding the Fourth Proportional to 146,738.70, 220,108.05 and 127,055.70

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Solution

The fourth proportional to 146,738.70, 220,108.05 and 127,055.70 is: 190,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,738.70 : 220,108.05 = 127,055.70 : x
  2. Step 2: Convert to fraction form
    146,738.70/220,108.05 = 127,055.70/x
  3. Step 3: Cross multiply
    146,738.70x = 220,108.05 × 127,055.70
  4. Step 4: Simplify right side
    146,738.70x = 27,965,982,368.39
  5. Step 5: Solve for x
    x = 27,965,982,368.39/146,738.70
  6. Step 6: Final answer
    x = 190,583.55

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1.5x scale

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.