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Finding the Fourth Proportional to 89,007.90, 133,479.45 and 44,619.90

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Solution

The fourth proportional to 89,007.90, 133,479.45 and 44,619.90 is: 66,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,007.90 : 133,479.45 = 44,619.90 : x
  2. Step 2: Convert to fraction form
    89,007.90/133,479.45 = 44,619.90/x
  3. Step 3: Cross multiply
    89,007.90x = 133,479.45 × 44,619.90
  4. Step 4: Simplify right side
    89,007.90x = 5,955,839,711.06
  5. Step 5: Solve for x
    x = 5,955,839,711.06/89,007.90
  6. Step 6: Final answer
    x = 66,913.61

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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.