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Finding the Fourth Proportional to 273,768.33, 410,718.47 and 86,779.83

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Solution

The fourth proportional to 273,768.33, 410,718.47 and 86,779.83 is: 130,190.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,768.33 : 410,718.47 = 86,779.83 : x
  2. Step 2: Convert to fraction form
    273,768.33/410,718.47 = 86,779.83/x
  3. Step 3: Cross multiply
    273,768.33x = 410,718.47 × 86,779.83
  4. Step 4: Simplify right side
    273,768.33x = 35,642,078,570.56
  5. Step 5: Solve for x
    x = 35,642,078,570.56/273,768.33
  6. Step 6: Final answer
    x = 130,190.66

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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.