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Finding the Fourth Proportional to 66,696.16, 99,918.96 and 44,443.84

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Solution

The fourth proportional to 66,696.16, 99,918.96 and 44,443.84 is: 66,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696.16 : 99,918.96 = 44,443.84 : x
  2. Step 2: Convert to fraction form
    66,696.16/99,918.96 = 44,443.84/x
  3. Step 3: Cross multiply
    66,696.16x = 99,918.96 × 44,443.84
  4. Step 4: Simplify right side
    66,696.16x = 4,440,782,271.21
  5. Step 5: Solve for x
    x = 4,440,782,271.21/66,696.16
  6. Step 6: Final answer
    x = 66,582.28

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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.