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Finding the Fourth Proportional to 122,773.66, 184,160.49 and 81,210.94

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Solution

The fourth proportional to 122,773.66, 184,160.49 and 81,210.94 is: 121,816.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,773.66 : 184,160.49 = 81,210.94 : x
  2. Step 2: Convert to fraction form
    122,773.66/184,160.49 = 81,210.94/x
  3. Step 3: Cross multiply
    122,773.66x = 184,160.49 × 81,210.94
  4. Step 4: Simplify right side
    122,773.66x = 14,955,846,503.76
  5. Step 5: Solve for x
    x = 14,955,846,503.76/122,773.66
  6. Step 6: Final answer
    x = 121,816.41

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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.