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Finding the Fourth Proportional to 190,394.82, 285,600.12 and 157,052.79

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Solution

The fourth proportional to 190,394.82, 285,600.12 and 157,052.79 is: 235,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,394.82 : 285,600.12 = 157,052.79 : x
  2. Step 2: Convert to fraction form
    190,394.82/285,600.12 = 157,052.79/x
  3. Step 3: Cross multiply
    190,394.82x = 285,600.12 × 157,052.79
  4. Step 4: Simplify right side
    190,394.82x = 44,854,295,081.39
  5. Step 5: Solve for x
    x = 44,854,295,081.39/190,394.82
  6. Step 6: Final answer
    x = 235,585.69

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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.