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Finding the Fourth Proportional to 216,442.15, 298,684.44 and 120,949.63

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Solution

The fourth proportional to 216,442.15, 298,684.44 and 120,949.63 is: 166,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,442.15 : 298,684.44 = 120,949.63 : x
  2. Step 2: Convert to fraction form
    216,442.15/298,684.44 = 120,949.63/x
  3. Step 3: Cross multiply
    216,442.15x = 298,684.44 × 120,949.63
  4. Step 4: Simplify right side
    216,442.15x = 36,125,772,504.76
  5. Step 5: Solve for x
    x = 36,125,772,504.76/216,442.15
  6. Step 6: Final answer
    x = 166,907.29

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1.5x scale

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.