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Finding the Third Proportional to 119,790.75 and 185,457

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Solution

The third proportional to 119,790.75 and 185,457 is: 287,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,790.75 : 185,457 = 185,457 : x
  2. Step 2: Convert to fraction form
    119,790.75/185,457 = 185,457/x
  3. Step 3: Cross multiply
    119,790.75x = 185,457 × 185,457
  4. Step 4: Simplify right side
    119,790.75x = 34,394,298,849
  5. Step 5: Solve for x
    x = 34,394,298,849/119,790.75
  6. Step 6: Final answer
    x = 287,119.82

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.