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Finding the Fourth Proportional to 228,489.62, 315,304.46 and 126,512.24

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Solution

The fourth proportional to 228,489.62, 315,304.46 and 126,512.24 is: 174,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,489.62 : 315,304.46 = 126,512.24 : x
  2. Step 2: Convert to fraction form
    228,489.62/315,304.46 = 126,512.24/x
  3. Step 3: Cross multiply
    228,489.62x = 315,304.46 × 126,512.24
  4. Step 4: Simplify right side
    228,489.62x = 39,889,871,307.51
  5. Step 5: Solve for x
    x = 39,889,871,307.51/228,489.62
  6. Step 6: Final answer
    x = 174,580.68

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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.