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Finding the Fourth Proportional to 76,027.96, 104,914.06 and 42,034.40

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Solution

The fourth proportional to 76,027.96, 104,914.06 and 42,034.40 is: 58,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,027.96 : 104,914.06 = 42,034.40 : x
  2. Step 2: Convert to fraction form
    76,027.96/104,914.06 = 42,034.40/x
  3. Step 3: Cross multiply
    76,027.96x = 104,914.06 × 42,034.40
  4. Step 4: Simplify right side
    76,027.96x = 4,409,999,563.66
  5. Step 5: Solve for x
    x = 4,409,999,563.66/76,027.96
  6. Step 6: Final answer
    x = 58,004.97

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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.