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Finding the Third Proportional to 72,628,878.75 and 155,619,205.50

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Solution

The third proportional to 72,628,878.75 and 155,619,205.50 is: 333,439,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,628,878.75 : 155,619,205.50 = 155,619,205.50 : x
  2. Step 2: Convert to fraction form
    72,628,878.75/155,619,205.50 = 155,619,205.50/x
  3. Step 3: Cross multiply
    72,628,878.75x = 155,619,205.50 × 155,619,205.50
  4. Step 4: Simplify right side
    72,628,878.75x = 24,217,337,120,451,232
  5. Step 5: Solve for x
    x = 24,217,337,120,451,232/72,628,878.75
  6. Step 6: Final answer
    x = 333,439,501.44

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.