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Finding the Fourth Proportional to 228,924.06, 315,909.32 and 126,947.90

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Solution

The fourth proportional to 228,924.06, 315,909.32 and 126,947.90 is: 175,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,924.06 : 315,909.32 = 126,947.90 : x
  2. Step 2: Convert to fraction form
    228,924.06/315,909.32 = 126,947.90/x
  3. Step 3: Cross multiply
    228,924.06x = 315,909.32 × 126,947.90
  4. Step 4: Simplify right side
    228,924.06x = 40,104,024,764.43
  5. Step 5: Solve for x
    x = 40,104,024,764.43/228,924.06
  6. Step 6: Final answer
    x = 175,184.84

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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.