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Finding the Fourth Proportional to 118,208.78, 177,313.20 and 35,102.78

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Solution

The fourth proportional to 118,208.78, 177,313.20 and 35,102.78 is: 52,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,208.78 : 177,313.20 = 35,102.78 : x
  2. Step 2: Convert to fraction form
    118,208.78/177,313.20 = 35,102.78/x
  3. Step 3: Cross multiply
    118,208.78x = 177,313.20 × 35,102.78
  4. Step 4: Simplify right side
    118,208.78x = 6,224,186,250.70
  5. Step 5: Solve for x
    x = 6,224,186,250.70/118,208.78
  6. Step 6: Final answer
    x = 52,654.18

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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.