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Finding the Fourth Proportional to 265,185.48, 397,738.70 and 87,693.42

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Solution

The fourth proportional to 265,185.48, 397,738.70 and 87,693.42 is: 131,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,185.48 : 397,738.70 = 87,693.42 : x
  2. Step 2: Convert to fraction form
    265,185.48/397,738.70 = 87,693.42/x
  3. Step 3: Cross multiply
    265,185.48x = 397,738.70 × 87,693.42
  4. Step 4: Simplify right side
    265,185.48x = 34,879,066,869.35
  5. Step 5: Solve for x
    x = 34,879,066,869.35/265,185.48
  6. Step 6: Final answer
    x = 131,527.06

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1.5x scale

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.