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Finding the Fourth Proportional to 84,556.80, 126,835.20 and 56,563.20

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Solution

The fourth proportional to 84,556.80, 126,835.20 and 56,563.20 is: 84,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,556.80 : 126,835.20 = 56,563.20 : x
  2. Step 2: Convert to fraction form
    84,556.80/126,835.20 = 56,563.20/x
  3. Step 3: Cross multiply
    84,556.80x = 126,835.20 × 56,563.20
  4. Step 4: Simplify right side
    84,556.80x = 7,174,204,784.64
  5. Step 5: Solve for x
    x = 7,174,204,784.64/84,556.80
  6. Step 6: Final answer
    x = 84,844.80

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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.