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Finding the Third Proportional to 72,916,027.88 and 111,809,509.31

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Solution

The third proportional to 72,916,027.88 and 111,809,509.31 is: 171,448,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,916,027.88 : 111,809,509.31 = 111,809,509.31 : x
  2. Step 2: Convert to fraction form
    72,916,027.88/111,809,509.31 = 111,809,509.31/x
  3. Step 3: Cross multiply
    72,916,027.88x = 111,809,509.31 × 111,809,509.31
  4. Step 4: Simplify right side
    72,916,027.88x = 12,501,366,372,702,024
  5. Step 5: Solve for x
    x = 12,501,366,372,702,024/72,916,027.88
  6. Step 6: Final answer
    x = 171,448,812.24

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.