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Finding the Fourth Proportional to 312,558.91, 468,831.88 and 75,902.83

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Solution

The fourth proportional to 312,558.91, 468,831.88 and 75,902.83 is: 113,852.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,558.91 : 468,831.88 = 75,902.83 : x
  2. Step 2: Convert to fraction form
    312,558.91/468,831.88 = 75,902.83/x
  3. Step 3: Cross multiply
    312,558.91x = 468,831.88 × 75,902.83
  4. Step 4: Simplify right side
    312,558.91x = 35,585,666,486.22
  5. Step 5: Solve for x
    x = 35,585,666,486.22/312,558.91
  6. Step 6: Final answer
    x = 113,852.67

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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.