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Finding the Third Proportional to 64,718,851.50 and 139,043,004.75

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Solution

The third proportional to 64,718,851.50 and 139,043,004.75 is: 298,722,191.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,718,851.50 : 139,043,004.75 = 139,043,004.75 : x
  2. Step 2: Convert to fraction form
    64,718,851.50/139,043,004.75 = 139,043,004.75/x
  3. Step 3: Cross multiply
    64,718,851.50x = 139,043,004.75 × 139,043,004.75
  4. Step 4: Simplify right side
    64,718,851.50x = 19,332,957,169,908,524
  5. Step 5: Solve for x
    x = 19,332,957,169,908,524/64,718,851.50
  6. Step 6: Final answer
    x = 298,722,191.79

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.