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Finding the Fourth Proportional to 69,466.64, 104,074.68 and 42,766.16

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Solution

The fourth proportional to 69,466.64, 104,074.68 and 42,766.16 is: 64,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,466.64 : 104,074.68 = 42,766.16 : x
  2. Step 2: Convert to fraction form
    69,466.64/104,074.68 = 42,766.16/x
  3. Step 3: Cross multiply
    69,466.64x = 104,074.68 × 42,766.16
  4. Step 4: Simplify right side
    69,466.64x = 4,450,874,416.83
  5. Step 5: Solve for x
    x = 4,450,874,416.83/69,466.64
  6. Step 6: Final answer
    x = 64,072.11

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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.