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Finding the Fourth Proportional to 223,405.80, 335,108.70 and 134,613.60

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Solution

The fourth proportional to 223,405.80, 335,108.70 and 134,613.60 is: 201,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,405.80 : 335,108.70 = 134,613.60 : x
  2. Step 2: Convert to fraction form
    223,405.80/335,108.70 = 134,613.60/x
  3. Step 3: Cross multiply
    223,405.80x = 335,108.70 × 134,613.60
  4. Step 4: Simplify right side
    223,405.80x = 45,110,188,498.32
  5. Step 5: Solve for x
    x = 45,110,188,498.32/223,405.80
  6. Step 6: Final answer
    x = 201,920.40

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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.