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Finding the Fourth Proportional to 228,603.74, 315,462.20 and 126,622.32

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Solution

The fourth proportional to 228,603.74, 315,462.20 and 126,622.32 is: 174,732.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,603.74 : 315,462.20 = 126,622.32 : x
  2. Step 2: Convert to fraction form
    228,603.74/315,462.20 = 126,622.32/x
  3. Step 3: Cross multiply
    228,603.74x = 315,462.20 × 126,622.32
  4. Step 4: Simplify right side
    228,603.74x = 39,944,555,636.30
  5. Step 5: Solve for x
    x = 39,944,555,636.30/228,603.74
  6. Step 6: Final answer
    x = 174,732.73

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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.