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Finding the Fourth Proportional to 66,802.88, 100,165.36 and 44,641.28

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Solution

The fourth proportional to 66,802.88, 100,165.36 and 44,641.28 is: 66,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,802.88 : 100,165.36 = 44,641.28 : x
  2. Step 2: Convert to fraction form
    66,802.88/100,165.36 = 44,641.28/x
  3. Step 3: Cross multiply
    66,802.88x = 100,165.36 × 44,641.28
  4. Step 4: Simplify right side
    66,802.88x = 4,471,509,882.06
  5. Step 5: Solve for x
    x = 4,471,509,882.06/66,802.88
  6. Step 6: Final answer
    x = 66,935.88

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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.