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Finding the Fourth Proportional to 222,910.70, 307,616.71 and 127,419.45

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Solution

The fourth proportional to 222,910.70, 307,616.71 and 127,419.45 is: 175,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,910.70 : 307,616.71 = 127,419.45 : x
  2. Step 2: Convert to fraction form
    222,910.70/307,616.71 = 127,419.45/x
  3. Step 3: Cross multiply
    222,910.70x = 307,616.71 × 127,419.45
  4. Step 4: Simplify right side
    222,910.70x = 39,196,351,999.01
  5. Step 5: Solve for x
    x = 39,196,351,999.01/222,910.70
  6. Step 6: Final answer
    x = 175,838.81

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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.