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Finding the Fourth Proportional to 228,100.92, 314,769.90 and 126,119.88

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Solution

The fourth proportional to 228,100.92, 314,769.90 and 126,119.88 is: 174,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,100.92 : 314,769.90 = 126,119.88 : x
  2. Step 2: Convert to fraction form
    228,100.92/314,769.90 = 126,119.88/x
  3. Step 3: Cross multiply
    228,100.92x = 314,769.90 × 126,119.88
  4. Step 4: Simplify right side
    228,100.92x = 39,698,742,015.61
  5. Step 5: Solve for x
    x = 39,698,742,015.61/228,100.92
  6. Step 6: Final answer
    x = 174,040.25

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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.