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Finding the Fourth Proportional to 71,289.46, 98,368.44 and 41,068.86

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Solution

The fourth proportional to 71,289.46, 98,368.44 and 41,068.86 is: 56,668.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,289.46 : 98,368.44 = 41,068.86 : x
  2. Step 2: Convert to fraction form
    71,289.46/98,368.44 = 41,068.86/x
  3. Step 3: Cross multiply
    71,289.46x = 98,368.44 × 41,068.86
  4. Step 4: Simplify right side
    71,289.46x = 4,039,879,690.78
  5. Step 5: Solve for x
    x = 4,039,879,690.78/71,289.46
  6. Step 6: Final answer
    x = 56,668.68

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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.