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Finding the Fourth Proportional to 131,804.58, 181,883.11 and 78,094.54

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Solution

The fourth proportional to 131,804.58, 181,883.11 and 78,094.54 is: 107,766.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,804.58 : 181,883.11 = 78,094.54 : x
  2. Step 2: Convert to fraction form
    131,804.58/181,883.11 = 78,094.54/x
  3. Step 3: Cross multiply
    131,804.58x = 181,883.11 × 78,094.54
  4. Step 4: Simplify right side
    131,804.58x = 14,204,077,809.22
  5. Step 5: Solve for x
    x = 14,204,077,809.22/131,804.58
  6. Step 6: Final answer
    x = 107,766.19

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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.