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Finding the Fourth Proportional to 76,043.36, 104,935.45 and 42,050.54

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Solution

The fourth proportional to 76,043.36, 104,935.45 and 42,050.54 is: 58,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,043.36 : 104,935.45 = 42,050.54 : x
  2. Step 2: Convert to fraction form
    76,043.36/104,935.45 = 42,050.54/x
  3. Step 3: Cross multiply
    76,043.36x = 104,935.45 × 42,050.54
  4. Step 4: Simplify right side
    76,043.36x = 4,412,592,573.70
  5. Step 5: Solve for x
    x = 4,412,592,573.70/76,043.36
  6. Step 6: Final answer
    x = 58,027.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.