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Finding the Third Proportional to 216,899,059.50 and 330,430,812.75

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Solution

The third proportional to 216,899,059.50 and 330,430,812.75 is: 503,388,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,899,059.50 : 330,430,812.75 = 330,430,812.75 : x
  2. Step 2: Convert to fraction form
    216,899,059.50/330,430,812.75 = 330,430,812.75/x
  3. Step 3: Cross multiply
    216,899,059.50x = 330,430,812.75 × 330,430,812.75
  4. Step 4: Simplify right side
    216,899,059.50x = 109,184,522,014,625,568
  5. Step 5: Solve for x
    x = 109,184,522,014,625,568/216,899,059.50
  6. Step 6: Final answer
    x = 503,388,637.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.