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Finding the Fourth Proportional to 95,100, 131,272.56 and 55,356

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Solution

The fourth proportional to 95,100, 131,272.56 and 55,356 is: 76,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,100 : 131,272.56 = 55,356 : x
  2. Step 2: Convert to fraction form
    95,100/131,272.56 = 55,356/x
  3. Step 3: Cross multiply
    95,100x = 131,272.56 × 55,356
  4. Step 4: Simplify right side
    95,100x = 7,266,723,831.36
  5. Step 5: Solve for x
    x = 7,266,723,831.36/95,100
  6. Step 6: Final answer
    x = 76,411.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.