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Finding the Fourth Proportional to 266,783.75, 368,171.80 and 152,080.46

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Solution

The fourth proportional to 266,783.75, 368,171.80 and 152,080.46 is: 209,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,783.75 : 368,171.80 = 152,080.46 : x
  2. Step 2: Convert to fraction form
    266,783.75/368,171.80 = 152,080.46/x
  3. Step 3: Cross multiply
    266,783.75x = 368,171.80 × 152,080.46
  4. Step 4: Simplify right side
    266,783.75x = 55,991,736,703.03
  5. Step 5: Solve for x
    x = 55,991,736,703.03/266,783.75
  6. Step 6: Final answer
    x = 209,876.86

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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.