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Finding the Fourth Proportional to 228,627.73, 315,506.21 and 126,659.81

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Solution

The fourth proportional to 228,627.73, 315,506.21 and 126,659.81 is: 174,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,627.73 : 315,506.21 = 126,659.81 : x
  2. Step 2: Convert to fraction form
    228,627.73/315,506.21 = 126,659.81/x
  3. Step 3: Cross multiply
    228,627.73x = 315,506.21 × 126,659.81
  4. Step 4: Simplify right side
    228,627.73x = 39,961,956,612.42
  5. Step 5: Solve for x
    x = 39,961,956,612.42/228,627.73
  6. Step 6: Final answer
    x = 174,790.51

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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.