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Finding the Fourth Proportional to 86,522.88, 119,369.65 and 50,699.82

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Solution

The fourth proportional to 86,522.88, 119,369.65 and 50,699.82 is: 69,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,522.88 : 119,369.65 = 50,699.82 : x
  2. Step 2: Convert to fraction form
    86,522.88/119,369.65 = 50,699.82/x
  3. Step 3: Cross multiply
    86,522.88x = 119,369.65 × 50,699.82
  4. Step 4: Simplify right side
    86,522.88x = 6,052,020,184.41
  5. Step 5: Solve for x
    x = 6,052,020,184.41/86,522.88
  6. Step 6: Final answer
    x = 69,947.05

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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.