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Finding the Fourth Proportional to 333,315.81, 499,972.91 and 111,699.81

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Solution

The fourth proportional to 333,315.81, 499,972.91 and 111,699.81 is: 167,549.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,315.81 : 499,972.91 = 111,699.81 : x
  2. Step 2: Convert to fraction form
    333,315.81/499,972.91 = 111,699.81/x
  3. Step 3: Cross multiply
    333,315.81x = 499,972.91 × 111,699.81
  4. Step 4: Simplify right side
    333,315.81x = 55,846,878,493.65
  5. Step 5: Solve for x
    x = 55,846,878,493.65/333,315.81
  6. Step 6: Final answer
    x = 167,549.44

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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.