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Finding the Third Proportional to 74,155,516 and 108,578,628

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Solution

The third proportional to 74,155,516 and 108,578,628 is: 158,981,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,155,516 : 108,578,628 = 108,578,628 : x
  2. Step 2: Convert to fraction form
    74,155,516/108,578,628 = 108,578,628/x
  3. Step 3: Cross multiply
    74,155,516x = 108,578,628 × 108,578,628
  4. Step 4: Simplify right side
    74,155,516x = 11,789,318,458,362,384
  5. Step 5: Solve for x
    x = 11,789,318,458,362,384/74,155,516
  6. Step 6: Final answer
    x = 158,981,004.98

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.