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Finding the Fourth Proportional to 86,393.70, 119,182.56 and 50,561.52

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Solution

The fourth proportional to 86,393.70, 119,182.56 and 50,561.52 is: 69,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,393.70 : 119,182.56 = 50,561.52 : x
  2. Step 2: Convert to fraction form
    86,393.70/119,182.56 = 50,561.52/x
  3. Step 3: Cross multiply
    86,393.70x = 119,182.56 × 50,561.52
  4. Step 4: Simplify right side
    86,393.70x = 6,026,051,391.09
  5. Step 5: Solve for x
    x = 6,026,051,391.09/86,393.70
  6. Step 6: Final answer
    x = 69,751.05

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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.