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Finding the Fourth Proportional to 70,561.46, 105,876.75 and 33,124.58

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Solution

The fourth proportional to 70,561.46, 105,876.75 and 33,124.58 is: 49,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,561.46 : 105,876.75 = 33,124.58 : x
  2. Step 2: Convert to fraction form
    70,561.46/105,876.75 = 33,124.58/x
  3. Step 3: Cross multiply
    70,561.46x = 105,876.75 × 33,124.58
  4. Step 4: Simplify right side
    70,561.46x = 3,507,122,346.13
  5. Step 5: Solve for x
    x = 3,507,122,346.13/70,561.46
  6. Step 6: Final answer
    x = 49,703.09

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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.