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Finding the Fourth Proportional to 73,608.48, 101,582.16 and 40,075.68

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Solution

The fourth proportional to 73,608.48, 101,582.16 and 40,075.68 is: 55,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,608.48 : 101,582.16 = 40,075.68 : x
  2. Step 2: Convert to fraction form
    73,608.48/101,582.16 = 40,075.68/x
  3. Step 3: Cross multiply
    73,608.48x = 101,582.16 × 40,075.68
  4. Step 4: Simplify right side
    73,608.48x = 4,070,974,137.87
  5. Step 5: Solve for x
    x = 4,070,974,137.87/73,608.48
  6. Step 6: Final answer
    x = 55,305.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.