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Finding the Fourth Proportional to 122,893.40, 184,411.74 and 51,811.70

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Solution

The fourth proportional to 122,893.40, 184,411.74 and 51,811.70 is: 77,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,893.40 : 184,411.74 = 51,811.70 : x
  2. Step 2: Convert to fraction form
    122,893.40/184,411.74 = 51,811.70/x
  3. Step 3: Cross multiply
    122,893.40x = 184,411.74 × 51,811.70
  4. Step 4: Simplify right side
    122,893.40x = 9,554,685,767.47
  5. Step 5: Solve for x
    x = 9,554,685,767.47/122,893.40
  6. Step 6: Final answer
    x = 77,747.75

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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.