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Finding the Fourth Proportional to 228,188.60, 314,894.76 and 126,211.40

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Solution

The fourth proportional to 228,188.60, 314,894.76 and 126,211.40 is: 174,168.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,188.60 : 314,894.76 = 126,211.40 : x
  2. Step 2: Convert to fraction form
    228,188.60/314,894.76 = 126,211.40/x
  3. Step 3: Cross multiply
    228,188.60x = 314,894.76 × 126,211.40
  4. Step 4: Simplify right side
    228,188.60x = 39,743,308,512.26
  5. Step 5: Solve for x
    x = 39,743,308,512.26/228,188.60
  6. Step 6: Final answer
    x = 174,168.69

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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.