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Finding the Fourth Proportional to 103,615.99, 155,473.19 and 44,468.57

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Solution

The fourth proportional to 103,615.99, 155,473.19 and 44,468.57 is: 66,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.99 : 155,473.19 = 44,468.57 : x
  2. Step 2: Convert to fraction form
    103,615.99/155,473.19 = 44,468.57/x
  3. Step 3: Cross multiply
    103,615.99x = 155,473.19 × 44,468.57
  4. Step 4: Simplify right side
    103,615.99x = 6,913,670,432.64
  5. Step 5: Solve for x
    x = 6,913,670,432.64/103,615.99
  6. Step 6: Final answer
    x = 66,723.97

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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.