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Finding the Fourth Proportional to 222,990.65, 307,717.26 and 127,503.60

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Solution

The fourth proportional to 222,990.65, 307,717.26 and 127,503.60 is: 175,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,990.65 : 307,717.26 = 127,503.60 : x
  2. Step 2: Convert to fraction form
    222,990.65/307,717.26 = 127,503.60/x
  3. Step 3: Cross multiply
    222,990.65x = 307,717.26 × 127,503.60
  4. Step 4: Simplify right side
    222,990.65x = 39,235,056,800.06
  5. Step 5: Solve for x
    x = 39,235,056,800.06/222,990.65
  6. Step 6: Final answer
    x = 175,949.34

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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.