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Finding the Fourth Proportional to 70,481.63, 105,675.28 and 37,166.51

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Solution

The fourth proportional to 70,481.63, 105,675.28 and 37,166.51 is: 55,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,481.63 : 105,675.28 = 37,166.51 : x
  2. Step 2: Convert to fraction form
    70,481.63/105,675.28 = 37,166.51/x
  3. Step 3: Cross multiply
    70,481.63x = 105,675.28 × 37,166.51
  4. Step 4: Simplify right side
    70,481.63x = 3,927,581,350.87
  5. Step 5: Solve for x
    x = 3,927,581,350.87/70,481.63
  6. Step 6: Final answer
    x = 55,724.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.