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Finding the Fourth Proportional to 84,879.66, 117,192.51 and 53,062.86

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Solution

The fourth proportional to 84,879.66, 117,192.51 and 53,062.86 is: 73,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,879.66 : 117,192.51 = 53,062.86 : x
  2. Step 2: Convert to fraction form
    84,879.66/117,192.51 = 53,062.86/x
  3. Step 3: Cross multiply
    84,879.66x = 117,192.51 × 53,062.86
  4. Step 4: Simplify right side
    84,879.66x = 6,218,569,751.18
  5. Step 5: Solve for x
    x = 6,218,569,751.18/84,879.66
  6. Step 6: Final answer
    x = 73,263.37

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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.