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Finding the Fourth Proportional to 144,054.80, 215,923.80 and 50,512.40

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Solution

The fourth proportional to 144,054.80, 215,923.80 and 50,512.40 is: 75,713.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,054.80 : 215,923.80 = 50,512.40 : x
  2. Step 2: Convert to fraction form
    144,054.80/215,923.80 = 50,512.40/x
  3. Step 3: Cross multiply
    144,054.80x = 215,923.80 × 50,512.40
  4. Step 4: Simplify right side
    144,054.80x = 10,906,829,355.12
  5. Step 5: Solve for x
    x = 10,906,829,355.12/144,054.80
  6. Step 6: Final answer
    x = 75,713.06

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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.