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Finding the Third Proportional to 154,511.50 and 239,216

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Solution

The third proportional to 154,511.50 and 239,216 is: 370,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,511.50 : 239,216 = 239,216 : x
  2. Step 2: Convert to fraction form
    154,511.50/239,216 = 239,216/x
  3. Step 3: Cross multiply
    154,511.50x = 239,216 × 239,216
  4. Step 4: Simplify right side
    154,511.50x = 57,224,294,656
  5. Step 5: Solve for x
    x = 57,224,294,656/154,511.50
  6. Step 6: Final answer
    x = 370,356.22

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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.