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Finding the Fourth Proportional to 73,608.77, 101,580.11 and 40,074.77

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Solution

The fourth proportional to 73,608.77, 101,580.11 and 40,074.77 is: 55,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,608.77 : 101,580.11 = 40,074.77 : x
  2. Step 2: Convert to fraction form
    73,608.77/101,580.11 = 40,074.77/x
  3. Step 3: Cross multiply
    73,608.77x = 101,580.11 × 40,074.77
  4. Step 4: Simplify right side
    73,608.77x = 4,070,799,137.11
  5. Step 5: Solve for x
    x = 4,070,799,137.11/73,608.77
  6. Step 6: Final answer
    x = 55,303.18

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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.