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Finding the Fourth Proportional to 491,881.55, 737,926.00 and 159,431.63

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Solution

The fourth proportional to 491,881.55, 737,926.00 and 159,431.63 is: 239,181.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,881.55 : 737,926.00 = 159,431.63 : x
  2. Step 2: Convert to fraction form
    491,881.55/737,926.00 = 159,431.63/x
  3. Step 3: Cross multiply
    491,881.55x = 737,926.00 × 159,431.63
  4. Step 4: Simplify right side
    491,881.55x = 117,648,740,911.17
  5. Step 5: Solve for x
    x = 117,648,740,911.17/491,881.55
  6. Step 6: Final answer
    x = 239,181.04

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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.