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Finding the Fourth Proportional to 222,987.72, 307,723.16 and 127,496.28

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Solution

The fourth proportional to 222,987.72, 307,723.16 and 127,496.28 is: 175,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,987.72 : 307,723.16 = 127,496.28 : x
  2. Step 2: Convert to fraction form
    222,987.72/307,723.16 = 127,496.28/x
  3. Step 3: Cross multiply
    222,987.72x = 307,723.16 × 127,496.28
  4. Step 4: Simplify right side
    222,987.72x = 39,233,558,169.84
  5. Step 5: Solve for x
    x = 39,233,558,169.84/222,987.72
  6. Step 6: Final answer
    x = 175,944.93

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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.