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Finding the Fourth Proportional to 256,011.66, 353,033.91 and 169,940.25

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Solution

The fourth proportional to 256,011.66, 353,033.91 and 169,940.25 is: 234,343.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,011.66 : 353,033.91 = 169,940.25 : x
  2. Step 2: Convert to fraction form
    256,011.66/353,033.91 = 169,940.25/x
  3. Step 3: Cross multiply
    256,011.66x = 353,033.91 × 169,940.25
  4. Step 4: Simplify right side
    256,011.66x = 59,994,670,923.88
  5. Step 5: Solve for x
    x = 59,994,670,923.88/256,011.66
  6. Step 6: Final answer
    x = 234,343.51

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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.