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Finding the Fourth Proportional to 264,877.48, 397,365.09 and 87,396.76

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Solution

The fourth proportional to 264,877.48, 397,365.09 and 87,396.76 is: 131,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,877.48 : 397,365.09 = 87,396.76 : x
  2. Step 2: Convert to fraction form
    264,877.48/397,365.09 = 87,396.76/x
  3. Step 3: Cross multiply
    264,877.48x = 397,365.09 × 87,396.76
  4. Step 4: Simplify right side
    264,877.48x = 34,728,421,403.11
  5. Step 5: Solve for x
    x = 34,728,421,403.11/264,877.48
  6. Step 6: Final answer
    x = 131,111.26

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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.