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Finding the Fourth Proportional to 222,979.64, 307,706.31 and 127,480.23

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Solution

The fourth proportional to 222,979.64, 307,706.31 and 127,480.23 is: 175,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,979.64 : 307,706.31 = 127,480.23 : x
  2. Step 2: Convert to fraction form
    222,979.64/307,706.31 = 127,480.23/x
  3. Step 3: Cross multiply
    222,979.64x = 307,706.31 × 127,480.23
  4. Step 4: Simplify right side
    222,979.64x = 39,226,471,171.25
  5. Step 5: Solve for x
    x = 39,226,471,171.25/222,979.64
  6. Step 6: Final answer
    x = 175,919.52

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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.