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Finding the Fourth Proportional to 158,783.96, 238,161.42 and 53,603.84

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Solution

The fourth proportional to 158,783.96, 238,161.42 and 53,603.84 is: 80,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,783.96 : 238,161.42 = 53,603.84 : x
  2. Step 2: Convert to fraction form
    158,783.96/238,161.42 = 53,603.84/x
  3. Step 3: Cross multiply
    158,783.96x = 238,161.42 × 53,603.84
  4. Step 4: Simplify right side
    158,783.96x = 12,766,366,651.85
  5. Step 5: Solve for x
    x = 12,766,366,651.85/158,783.96
  6. Step 6: Final answer
    x = 80,400.86

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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.