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Finding the Fourth Proportional to 228,168.94, 314,860.74 and 126,188.44

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Solution

The fourth proportional to 228,168.94, 314,860.74 and 126,188.44 is: 174,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,168.94 : 314,860.74 = 126,188.44 : x
  2. Step 2: Convert to fraction form
    228,168.94/314,860.74 = 126,188.44/x
  3. Step 3: Cross multiply
    228,168.94x = 314,860.74 × 126,188.44
  4. Step 4: Simplify right side
    228,168.94x = 39,731,785,597.85
  5. Step 5: Solve for x
    x = 39,731,785,597.85/228,168.94
  6. Step 6: Final answer
    x = 174,133.19

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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.