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Finding the Fourth Proportional to 70,483.69, 105,723.44 and 26,109.46

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Solution

The fourth proportional to 70,483.69, 105,723.44 and 26,109.46 is: 39,163.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,483.69 : 105,723.44 = 26,109.46 : x
  2. Step 2: Convert to fraction form
    70,483.69/105,723.44 = 26,109.46/x
  3. Step 3: Cross multiply
    70,483.69x = 105,723.44 × 26,109.46
  4. Step 4: Simplify right side
    70,483.69x = 2,760,381,927.74
  5. Step 5: Solve for x
    x = 2,760,381,927.74/70,483.69
  6. Step 6: Final answer
    x = 39,163.41

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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.