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Finding the Fourth Proportional to 215,372.89, 297,214.59 and 119,877.54

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Solution

The fourth proportional to 215,372.89, 297,214.59 and 119,877.54 is: 165,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,372.89 : 297,214.59 = 119,877.54 : x
  2. Step 2: Convert to fraction form
    215,372.89/297,214.59 = 119,877.54/x
  3. Step 3: Cross multiply
    215,372.89x = 297,214.59 × 119,877.54
  4. Step 4: Simplify right side
    215,372.89x = 35,629,353,901.31
  5. Step 5: Solve for x
    x = 35,629,353,901.31/215,372.89
  6. Step 6: Final answer
    x = 165,431.01

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1.5x scale

Why These Related Problems?

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