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Finding the Fourth Proportional to 236,612.70, 354,832.65 and 78,846.30

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Solution

The fourth proportional to 236,612.70, 354,832.65 and 78,846.30 is: 118,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,612.70 : 354,832.65 = 78,846.30 : x
  2. Step 2: Convert to fraction form
    236,612.70/354,832.65 = 78,846.30/x
  3. Step 3: Cross multiply
    236,612.70x = 354,832.65 × 78,846.30
  4. Step 4: Simplify right side
    236,612.70x = 27,977,241,571.70
  5. Step 5: Solve for x
    x = 27,977,241,571.70/236,612.70
  6. Step 6: Final answer
    x = 118,240.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.