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Finding the Fourth Proportional to 86,436.88, 119,282.90 and 46,692.88

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Solution

The fourth proportional to 86,436.88, 119,282.90 and 46,692.88 is: 64,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,436.88 : 119,282.90 = 46,692.88 : x
  2. Step 2: Convert to fraction form
    86,436.88/119,282.90 = 46,692.88/x
  3. Step 3: Cross multiply
    86,436.88x = 119,282.90 × 46,692.88
  4. Step 4: Simplify right side
    86,436.88x = 5,569,661,305.87
  5. Step 5: Solve for x
    x = 5,569,661,305.87/86,436.88
  6. Step 6: Final answer
    x = 64,436.17

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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.