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Finding the Fourth Proportional to 139,466.83, 192,465.48 and 75,804.76

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Solution

The fourth proportional to 139,466.83, 192,465.48 and 75,804.76 is: 104,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,466.83 : 192,465.48 = 75,804.76 : x
  2. Step 2: Convert to fraction form
    139,466.83/192,465.48 = 75,804.76/x
  3. Step 3: Cross multiply
    139,466.83x = 192,465.48 × 75,804.76
  4. Step 4: Simplify right side
    139,466.83x = 14,589,799,519.68
  5. Step 5: Solve for x
    x = 14,589,799,519.68/139,466.83
  6. Step 6: Final answer
    x = 104,611.25

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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.