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Finding the Fourth Proportional to 122,118.72, 168,461.83 and 83,327.45

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Solution

The fourth proportional to 122,118.72, 168,461.83 and 83,327.45 is: 114,949.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,118.72 : 168,461.83 = 83,327.45 : x
  2. Step 2: Convert to fraction form
    122,118.72/168,461.83 = 83,327.45/x
  3. Step 3: Cross multiply
    122,118.72x = 168,461.83 × 83,327.45
  4. Step 4: Simplify right side
    122,118.72x = 14,037,495,160.04
  5. Step 5: Solve for x
    x = 14,037,495,160.04/122,118.72
  6. Step 6: Final answer
    x = 114,949.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.