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Finding the Fourth Proportional to 70,914.49, 97,894.34 and 50,509.69

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Solution

The fourth proportional to 70,914.49, 97,894.34 and 50,509.69 is: 69,726.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,914.49 : 97,894.34 = 50,509.69 : x
  2. Step 2: Convert to fraction form
    70,914.49/97,894.34 = 50,509.69/x
  3. Step 3: Cross multiply
    70,914.49x = 97,894.34 × 50,509.69
  4. Step 4: Simplify right side
    70,914.49x = 4,944,612,766.15
  5. Step 5: Solve for x
    x = 4,944,612,766.15/70,914.49
  6. Step 6: Final answer
    x = 69,726.41

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Why These Related Problems?

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