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Finding the Fourth Proportional to 106,669.84, 147,184.02 and 64,231.12

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Solution

The fourth proportional to 106,669.84, 147,184.02 and 64,231.12 is: 88,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,669.84 : 147,184.02 = 64,231.12 : x
  2. Step 2: Convert to fraction form
    106,669.84/147,184.02 = 64,231.12/x
  3. Step 3: Cross multiply
    106,669.84x = 147,184.02 × 64,231.12
  4. Step 4: Simplify right side
    106,669.84x = 9,453,794,450.70
  5. Step 5: Solve for x
    x = 9,453,794,450.70/106,669.84
  6. Step 6: Final answer
    x = 88,626.69

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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.