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Finding the Fourth Proportional to 299,085.65, 412,504.80 and 191,665.67

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Solution

The fourth proportional to 299,085.65, 412,504.80 and 191,665.67 is: 264,349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,085.65 : 412,504.80 = 191,665.67 : x
  2. Step 2: Convert to fraction form
    299,085.65/412,504.80 = 191,665.67/x
  3. Step 3: Cross multiply
    299,085.65x = 412,504.80 × 191,665.67
  4. Step 4: Simplify right side
    299,085.65x = 79,063,008,870.22
  5. Step 5: Solve for x
    x = 79,063,008,870.22/299,085.65
  6. Step 6: Final answer
    x = 264,349.06

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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.