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Finding the Fourth Proportional to 225,682.04, 311,225.62 and 135,023.60

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Solution

The fourth proportional to 225,682.04, 311,225.62 and 135,023.60 is: 186,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,682.04 : 311,225.62 = 135,023.60 : x
  2. Step 2: Convert to fraction form
    225,682.04/311,225.62 = 135,023.60/x
  3. Step 3: Cross multiply
    225,682.04x = 311,225.62 × 135,023.60
  4. Step 4: Simplify right side
    225,682.04x = 42,022,803,624.63
  5. Step 5: Solve for x
    x = 42,022,803,624.63/225,682.04
  6. Step 6: Final answer
    x = 186,203.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.