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Finding the Fourth Proportional to 73,395,513.20, 110,128,699.20 and 51,783,579.20

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Solution

The fourth proportional to 73,395,513.20, 110,128,699.20 and 51,783,579.20 is: 77,700,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,395,513.20 : 110,128,699.20 = 51,783,579.20 : x
  2. Step 2: Convert to fraction form
    73,395,513.20/110,128,699.20 = 51,783,579.20/x
  3. Step 3: Cross multiply
    73,395,513.20x = 110,128,699.20 × 51,783,579.20
  4. Step 4: Simplify right side
    73,395,513.20x = 5,702,858,217,216,177
  5. Step 5: Solve for x
    x = 5,702,858,217,216,177/73,395,513.20
  6. Step 6: Final answer
    x = 77,700,365.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.