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Finding the Fourth Proportional to 351,267.69, 526,920.20 and 111,400.50

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Solution

The fourth proportional to 351,267.69, 526,920.20 and 111,400.50 is: 167,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,267.69 : 526,920.20 = 111,400.50 : x
  2. Step 2: Convert to fraction form
    351,267.69/526,920.20 = 111,400.50/x
  3. Step 3: Cross multiply
    351,267.69x = 526,920.20 × 111,400.50
  4. Step 4: Simplify right side
    351,267.69x = 58,699,173,740.10
  5. Step 5: Solve for x
    x = 58,699,173,740.10/351,267.69
  6. Step 6: Final answer
    x = 167,106.67

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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.