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Finding the Fourth Proportional to 66,401.58, 99,631.77 and 34,804.11

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Solution

The fourth proportional to 66,401.58, 99,631.77 and 34,804.11 is: 52,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,401.58 : 99,631.77 = 34,804.11 : x
  2. Step 2: Convert to fraction form
    66,401.58/99,631.77 = 34,804.11/x
  3. Step 3: Cross multiply
    66,401.58x = 99,631.77 × 34,804.11
  4. Step 4: Simplify right side
    66,401.58x = 3,467,595,082.57
  5. Step 5: Solve for x
    x = 3,467,595,082.57/66,401.58
  6. Step 6: Final answer
    x = 52,221.57

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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.