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Finding the Fourth Proportional to 308,467.65, 425,677.37 and 170,651.67

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Solution

The fourth proportional to 308,467.65, 425,677.37 and 170,651.67 is: 235,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,467.65 : 425,677.37 = 170,651.67 : x
  2. Step 2: Convert to fraction form
    308,467.65/425,677.37 = 170,651.67/x
  3. Step 3: Cross multiply
    308,467.65x = 425,677.37 × 170,651.67
  4. Step 4: Simplify right side
    308,467.65x = 72,642,554,071.71
  5. Step 5: Solve for x
    x = 72,642,554,071.71/308,467.65
  6. Step 6: Final answer
    x = 235,494.89

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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.