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Finding the Fourth Proportional to 299,964.57, 414,055.35 and 172,690.89

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Solution

The fourth proportional to 299,964.57, 414,055.35 and 172,690.89 is: 238,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,964.57 : 414,055.35 = 172,690.89 : x
  2. Step 2: Convert to fraction form
    299,964.57/414,055.35 = 172,690.89/x
  3. Step 3: Cross multiply
    299,964.57x = 414,055.35 × 172,690.89
  4. Step 4: Simplify right side
    299,964.57x = 71,503,586,900.76
  5. Step 5: Solve for x
    x = 71,503,586,900.76/299,964.57
  6. Step 6: Final answer
    x = 238,373.44

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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.