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Finding the Third Proportional to 186,847.50 and 290,116.50

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Solution

The third proportional to 186,847.50 and 290,116.50 is: 450,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,847.50 : 290,116.50 = 290,116.50 : x
  2. Step 2: Convert to fraction form
    186,847.50/290,116.50 = 290,116.50/x
  3. Step 3: Cross multiply
    186,847.50x = 290,116.50 × 290,116.50
  4. Step 4: Simplify right side
    186,847.50x = 84,167,583,572.25
  5. Step 5: Solve for x
    x = 84,167,583,572.25/186,847.50
  6. Step 6: Final answer
    x = 450,461.38

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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.