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Finding the Fourth Proportional to 212,668.67, 293,482.78 and 117,174.53

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Solution

The fourth proportional to 212,668.67, 293,482.78 and 117,174.53 is: 161,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,668.67 : 293,482.78 = 117,174.53 : x
  2. Step 2: Convert to fraction form
    212,668.67/293,482.78 = 117,174.53/x
  3. Step 3: Cross multiply
    212,668.67x = 293,482.78 × 117,174.53
  4. Step 4: Simplify right side
    212,668.67x = 34,388,707,250.36
  5. Step 5: Solve for x
    x = 34,388,707,250.36/212,668.67
  6. Step 6: Final answer
    x = 161,700.86

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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.