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Finding the Fourth Proportional to 228,144.54, 314,841.56 and 126,164.73

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Solution

The fourth proportional to 228,144.54, 314,841.56 and 126,164.73 is: 174,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,144.54 : 314,841.56 = 126,164.73 : x
  2. Step 2: Convert to fraction form
    228,144.54/314,841.56 = 126,164.73/x
  3. Step 3: Cross multiply
    228,144.54x = 314,841.56 × 126,164.73
  4. Step 4: Simplify right side
    228,144.54x = 39,721,899,779.36
  5. Step 5: Solve for x
    x = 39,721,899,779.36/228,144.54
  6. Step 6: Final answer
    x = 174,108.48

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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.