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Finding the Fourth Proportional to 258,442.67, 387,926.45 and 183,647.27

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Solution

The fourth proportional to 258,442.67, 387,926.45 and 183,647.27 is: 275,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,442.67 : 387,926.45 = 183,647.27 : x
  2. Step 2: Convert to fraction form
    258,442.67/387,926.45 = 183,647.27/x
  3. Step 3: Cross multiply
    258,442.67x = 387,926.45 × 183,647.27
  4. Step 4: Simplify right side
    258,442.67x = 71,241,630,645.42
  5. Step 5: Solve for x
    x = 71,241,630,645.42/258,442.67
  6. Step 6: Final answer
    x = 275,657.39

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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.