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Finding the Fourth Proportional to 106,479.84, 159,709.13 and 43,303.69

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Solution

The fourth proportional to 106,479.84, 159,709.13 and 43,303.69 is: 64,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,479.84 : 159,709.13 = 43,303.69 : x
  2. Step 2: Convert to fraction form
    106,479.84/159,709.13 = 43,303.69/x
  3. Step 3: Cross multiply
    106,479.84x = 159,709.13 × 43,303.69
  4. Step 4: Simplify right side
    106,479.84x = 6,915,994,655.69
  5. Step 5: Solve for x
    x = 6,915,994,655.69/106,479.84
  6. Step 6: Final answer
    x = 64,951.21

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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.