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Finding the Fourth Proportional to 144,944.70, 217,417.05 and 134,447.10

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Solution

The fourth proportional to 144,944.70, 217,417.05 and 134,447.10 is: 201,670.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,944.70 : 217,417.05 = 134,447.10 : x
  2. Step 2: Convert to fraction form
    144,944.70/217,417.05 = 134,447.10/x
  3. Step 3: Cross multiply
    144,944.70x = 217,417.05 × 134,447.10
  4. Step 4: Simplify right side
    144,944.70x = 29,231,091,863.06
  5. Step 5: Solve for x
    x = 29,231,091,863.06/144,944.70
  6. Step 6: Final answer
    x = 201,670.65

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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.