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Finding the Fourth Proportional to 177,990.49, 266,951.70 and 53,331.49

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Solution

The fourth proportional to 177,990.49, 266,951.70 and 53,331.49 is: 79,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,990.49 : 266,951.70 = 53,331.49 : x
  2. Step 2: Convert to fraction form
    177,990.49/266,951.70 = 53,331.49/x
  3. Step 3: Cross multiply
    177,990.49x = 266,951.70 × 53,331.49
  4. Step 4: Simplify right side
    177,990.49x = 14,236,931,919.03
  5. Step 5: Solve for x
    x = 14,236,931,919.03/177,990.49
  6. Step 6: Final answer
    x = 79,987.04

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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.