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Finding the Fourth Proportional to 66,440.80, 99,550.25 and 46,683.99

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Solution

The fourth proportional to 66,440.80, 99,550.25 and 46,683.99 is: 69,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440.80 : 99,550.25 = 46,683.99 : x
  2. Step 2: Convert to fraction form
    66,440.80/99,550.25 = 46,683.99/x
  3. Step 3: Cross multiply
    66,440.80x = 99,550.25 × 46,683.99
  4. Step 4: Simplify right side
    66,440.80x = 4,647,402,992.21
  5. Step 5: Solve for x
    x = 4,647,402,992.21/66,440.80
  6. Step 6: Final answer
    x = 69,948.03

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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.