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Finding the Fourth Proportional to 86,252.40, 119,042.40 and 50,435.40

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Solution

The fourth proportional to 86,252.40, 119,042.40 and 50,435.40 is: 69,609.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,252.40 : 119,042.40 = 50,435.40 : x
  2. Step 2: Convert to fraction form
    86,252.40/119,042.40 = 50,435.40/x
  3. Step 3: Cross multiply
    86,252.40x = 119,042.40 × 50,435.40
  4. Step 4: Simplify right side
    86,252.40x = 6,003,951,060.96
  5. Step 5: Solve for x
    x = 6,003,951,060.96/86,252.40
  6. Step 6: Final answer
    x = 69,609.09

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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.