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Finding the Fourth Proportional to 70,652.52, 105,888.46 and 33,129.81

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Solution

The fourth proportional to 70,652.52, 105,888.46 and 33,129.81 is: 49,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,652.52 : 105,888.46 = 33,129.81 : x
  2. Step 2: Convert to fraction form
    70,652.52/105,888.46 = 33,129.81/x
  3. Step 3: Cross multiply
    70,652.52x = 105,888.46 × 33,129.81
  4. Step 4: Simplify right side
    70,652.52x = 3,508,064,560.99
  5. Step 5: Solve for x
    x = 3,508,064,560.99/70,652.52
  6. Step 6: Final answer
    x = 49,652.36

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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.