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Finding the Fourth Proportional to 213,651.16, 320,452.26 and 55,894.84

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Solution

The fourth proportional to 213,651.16, 320,452.26 and 55,894.84 is: 83,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,651.16 : 320,452.26 = 55,894.84 : x
  2. Step 2: Convert to fraction form
    213,651.16/320,452.26 = 55,894.84/x
  3. Step 3: Cross multiply
    213,651.16x = 320,452.26 × 55,894.84
  4. Step 4: Simplify right side
    213,651.16x = 17,911,627,800.34
  5. Step 5: Solve for x
    x = 17,911,627,800.34/213,651.16
  6. Step 6: Final answer
    x = 83,835.86

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1.5x scale

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.