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Finding the Fourth Proportional to 84,024.77, 126,055.85 and 36,647.53

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Solution

The fourth proportional to 84,024.77, 126,055.85 and 36,647.53 is: 54,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,024.77 : 126,055.85 = 36,647.53 : x
  2. Step 2: Convert to fraction form
    84,024.77/126,055.85 = 36,647.53/x
  3. Step 3: Cross multiply
    84,024.77x = 126,055.85 × 36,647.53
  4. Step 4: Simplify right side
    84,024.77x = 4,619,635,544.55
  5. Step 5: Solve for x
    x = 4,619,635,544.55/84,024.77
  6. Step 6: Final answer
    x = 54,979.45

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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.