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Finding the Fourth Proportional to 177,620, 266,561.52 and 84,126.02

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Solution

The fourth proportional to 177,620, 266,561.52 and 84,126.02 is: 126,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,620 : 266,561.52 = 84,126.02 : x
  2. Step 2: Convert to fraction form
    177,620/266,561.52 = 84,126.02/x
  3. Step 3: Cross multiply
    177,620x = 266,561.52 × 84,126.02
  4. Step 4: Simplify right side
    177,620x = 22,424,759,762.75
  5. Step 5: Solve for x
    x = 22,424,759,762.75/177,620
  6. Step 6: Final answer
    x = 126,251.32

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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.