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Finding the Fourth Proportional to 355,523.44, 533,232.72 and 130,831.68

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Solution

The fourth proportional to 355,523.44, 533,232.72 and 130,831.68 is: 196,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,523.44 : 533,232.72 = 130,831.68 : x
  2. Step 2: Convert to fraction form
    355,523.44/533,232.72 = 130,831.68/x
  3. Step 3: Cross multiply
    355,523.44x = 533,232.72 × 130,831.68
  4. Step 4: Simplify right side
    355,523.44x = 69,763,732,588.57
  5. Step 5: Solve for x
    x = 69,763,732,588.57/355,523.44
  6. Step 6: Final answer
    x = 196,228.22

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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.