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Finding the Fourth Proportional to 209,751.89, 314,902.23 and 124,518.35

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Solution

The fourth proportional to 209,751.89, 314,902.23 and 124,518.35 is: 186,940.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,751.89 : 314,902.23 = 124,518.35 : x
  2. Step 2: Convert to fraction form
    209,751.89/314,902.23 = 124,518.35/x
  3. Step 3: Cross multiply
    209,751.89x = 314,902.23 × 124,518.35
  4. Step 4: Simplify right side
    209,751.89x = 39,211,104,516.41
  5. Step 5: Solve for x
    x = 39,211,104,516.41/209,751.89
  6. Step 6: Final answer
    x = 186,940.42

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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.