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Finding the Fourth Proportional to 213,907, 295,269.42 and 124,483

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Solution

The fourth proportional to 213,907, 295,269.42 and 124,483 is: 171,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,907 : 295,269.42 = 124,483 : x
  2. Step 2: Convert to fraction form
    213,907/295,269.42 = 124,483/x
  3. Step 3: Cross multiply
    213,907x = 295,269.42 × 124,483
  4. Step 4: Simplify right side
    213,907x = 36,756,023,209.86
  5. Step 5: Solve for x
    x = 36,756,023,209.86/213,907
  6. Step 6: Final answer
    x = 171,831.79

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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.