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Finding the Fourth Proportional to 265,036.37, 397,469.77 and 87,510.29

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Solution

The fourth proportional to 265,036.37, 397,469.77 and 87,510.29 is: 131,237.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,036.37 : 397,469.77 = 87,510.29 : x
  2. Step 2: Convert to fraction form
    265,036.37/397,469.77 = 87,510.29/x
  3. Step 3: Cross multiply
    265,036.37x = 397,469.77 × 87,510.29
  4. Step 4: Simplify right side
    265,036.37x = 34,782,692,632.81
  5. Step 5: Solve for x
    x = 34,782,692,632.81/265,036.37
  6. Step 6: Final answer
    x = 131,237.43

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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.