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Finding the Fourth Proportional to 265,095.72, 397,717.70 and 87,727.59

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Solution

The fourth proportional to 265,095.72, 397,717.70 and 87,727.59 is: 131,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,095.72 : 397,717.70 = 87,727.59 : x
  2. Step 2: Convert to fraction form
    265,095.72/397,717.70 = 87,727.59/x
  3. Step 3: Cross multiply
    265,095.72x = 397,717.70 × 87,727.59
  4. Step 4: Simplify right side
    265,095.72x = 34,890,814,882.71
  5. Step 5: Solve for x
    x = 34,890,814,882.71/265,095.72
  6. Step 6: Final answer
    x = 131,615.91

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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.