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Finding the Fourth Proportional to 228,185.91, 314,889.93 and 126,215.42

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Solution

The fourth proportional to 228,185.91, 314,889.93 and 126,215.42 is: 174,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,185.91 : 314,889.93 = 126,215.42 : x
  2. Step 2: Convert to fraction form
    228,185.91/314,889.93 = 126,215.42/x
  3. Step 3: Cross multiply
    228,185.91x = 314,889.93 × 126,215.42
  4. Step 4: Simplify right side
    228,185.91x = 39,743,963,194.27
  5. Step 5: Solve for x
    x = 39,743,963,194.27/228,185.91
  6. Step 6: Final answer
    x = 174,173.61

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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.