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Finding the Fourth Proportional to 73,608.89, 101,580.29 and 40,074.89

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Solution

The fourth proportional to 73,608.89, 101,580.29 and 40,074.89 is: 55,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,608.89 : 101,580.29 = 40,074.89 : x
  2. Step 2: Convert to fraction form
    73,608.89/101,580.29 = 40,074.89/x
  3. Step 3: Cross multiply
    73,608.89x = 101,580.29 × 40,074.89
  4. Step 4: Simplify right side
    73,608.89x = 4,070,818,747.54
  5. Step 5: Solve for x
    x = 4,070,818,747.54/73,608.89
  6. Step 6: Final answer
    x = 55,303.36

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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.