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Finding the Fourth Proportional to 101,920.79, 152,893.34 and 49,292.45

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Solution

The fourth proportional to 101,920.79, 152,893.34 and 49,292.45 is: 73,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,920.79 : 152,893.34 = 49,292.45 : x
  2. Step 2: Convert to fraction form
    101,920.79/152,893.34 = 49,292.45/x
  3. Step 3: Cross multiply
    101,920.79x = 152,893.34 × 49,292.45
  4. Step 4: Simplify right side
    101,920.79x = 7,536,487,317.28
  5. Step 5: Solve for x
    x = 7,536,487,317.28/101,920.79
  6. Step 6: Final answer
    x = 73,944.55

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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.