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Finding the Fourth Proportional to 223,866.60, 336,059.10 and 135,220.20

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Solution

The fourth proportional to 223,866.60, 336,059.10 and 135,220.20 is: 202,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,866.60 : 336,059.10 = 135,220.20 : x
  2. Step 2: Convert to fraction form
    223,866.60/336,059.10 = 135,220.20/x
  3. Step 3: Cross multiply
    223,866.60x = 336,059.10 × 135,220.20
  4. Step 4: Simplify right side
    223,866.60x = 45,441,978,713.82
  5. Step 5: Solve for x
    x = 45,441,978,713.82/223,866.60
  6. Step 6: Final answer
    x = 202,986.86

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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.