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Finding the Fourth Proportional to 86,525.75, 119,405.54 and 46,781.75

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Solution

The fourth proportional to 86,525.75, 119,405.54 and 46,781.75 is: 64,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,525.75 : 119,405.54 = 46,781.75 : x
  2. Step 2: Convert to fraction form
    86,525.75/119,405.54 = 46,781.75/x
  3. Step 3: Cross multiply
    86,525.75x = 119,405.54 × 46,781.75
  4. Step 4: Simplify right side
    86,525.75x = 5,586,000,120.90
  5. Step 5: Solve for x
    x = 5,586,000,120.90/86,525.75
  6. Step 6: Final answer
    x = 64,558.82

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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.