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Finding the Fourth Proportional to 158,292.15, 218,399.86 and 101,736.33

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Solution

The fourth proportional to 158,292.15, 218,399.86 and 101,736.33 is: 140,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,292.15 : 218,399.86 = 101,736.33 : x
  2. Step 2: Convert to fraction form
    158,292.15/218,399.86 = 101,736.33/x
  3. Step 3: Cross multiply
    158,292.15x = 218,399.86 × 101,736.33
  4. Step 4: Simplify right side
    158,292.15x = 22,219,200,228.91
  5. Step 5: Solve for x
    x = 22,219,200,228.91/158,292.15
  6. Step 6: Final answer
    x = 140,368.30

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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.