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Finding the Fourth Proportional to 86,831.70, 130,252.62 and 33,523.98

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Solution

The fourth proportional to 86,831.70, 130,252.62 and 33,523.98 is: 50,287.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,831.70 : 130,252.62 = 33,523.98 : x
  2. Step 2: Convert to fraction form
    86,831.70/130,252.62 = 33,523.98/x
  3. Step 3: Cross multiply
    86,831.70x = 130,252.62 × 33,523.98
  4. Step 4: Simplify right side
    86,831.70x = 4,366,586,227.83
  5. Step 5: Solve for x
    x = 4,366,586,227.83/86,831.70
  6. Step 6: Final answer
    x = 50,287.93

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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.