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Finding the Fourth Proportional to 264,869.73, 397,353.47 and 87,389.01

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Solution

The fourth proportional to 264,869.73, 397,353.47 and 87,389.01 is: 131,099.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,869.73 : 397,353.47 = 87,389.01 : x
  2. Step 2: Convert to fraction form
    264,869.73/397,353.47 = 87,389.01/x
  3. Step 3: Cross multiply
    264,869.73x = 397,353.47 × 87,389.01
  4. Step 4: Simplify right side
    264,869.73x = 34,724,325,926.42
  5. Step 5: Solve for x
    x = 34,724,325,926.42/264,869.73
  6. Step 6: Final answer
    x = 131,099.64

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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.