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Finding the Fourth Proportional to 86,381.42, 119,210.00 and 48,141

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Solution

The fourth proportional to 86,381.42, 119,210.00 and 48,141 is: 66,436.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,381.42 : 119,210.00 = 48,141 : x
  2. Step 2: Convert to fraction form
    86,381.42/119,210.00 = 48,141/x
  3. Step 3: Cross multiply
    86,381.42x = 119,210.00 × 48,141
  4. Step 4: Simplify right side
    86,381.42x = 5,738,888,369.30
  5. Step 5: Solve for x
    x = 5,738,888,369.30/86,381.42
  6. Step 6: Final answer
    x = 66,436.61

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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.