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Finding the Fourth Proportional to 236,809.60, 355,198.20 and 76,883.20

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Solution

The fourth proportional to 236,809.60, 355,198.20 and 76,883.20 is: 115,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,809.60 : 355,198.20 = 76,883.20 : x
  2. Step 2: Convert to fraction form
    236,809.60/355,198.20 = 76,883.20/x
  3. Step 3: Cross multiply
    236,809.60x = 355,198.20 × 76,883.20
  4. Step 4: Simplify right side
    236,809.60x = 27,308,774,250.24
  5. Step 5: Solve for x
    x = 27,308,774,250.24/236,809.60
  6. Step 6: Final answer
    x = 115,319.54

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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.