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Finding the Fourth Proportional to 101,351.25, 139,858.02 and 58,323.78

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Solution

The fourth proportional to 101,351.25, 139,858.02 and 58,323.78 is: 80,482.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,351.25 : 139,858.02 = 58,323.78 : x
  2. Step 2: Convert to fraction form
    101,351.25/139,858.02 = 58,323.78/x
  3. Step 3: Cross multiply
    101,351.25x = 139,858.02 × 58,323.78
  4. Step 4: Simplify right side
    101,351.25x = 8,157,048,389.72
  5. Step 5: Solve for x
    x = 8,157,048,389.72/101,351.25
  6. Step 6: Final answer
    x = 80,482.96

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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.