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Finding the Fourth Proportional to 177,781.66, 266,672.75 and 72,600.64

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Solution

The fourth proportional to 177,781.66, 266,672.75 and 72,600.64 is: 108,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,781.66 : 266,672.75 = 72,600.64 : x
  2. Step 2: Convert to fraction form
    177,781.66/266,672.75 = 72,600.64/x
  3. Step 3: Cross multiply
    177,781.66x = 266,672.75 × 72,600.64
  4. Step 4: Simplify right side
    177,781.66x = 19,360,611,290.87
  5. Step 5: Solve for x
    x = 19,360,611,290.87/177,781.66
  6. Step 6: Final answer
    x = 108,901.06

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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.