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Finding the Fourth Proportional to 225,888.82, 311,735.76 and 135,226.74

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Solution

The fourth proportional to 225,888.82, 311,735.76 and 135,226.74 is: 186,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,888.82 : 311,735.76 = 135,226.74 : x
  2. Step 2: Convert to fraction form
    225,888.82/311,735.76 = 135,226.74/x
  3. Step 3: Cross multiply
    225,888.82x = 311,735.76 × 135,226.74
  4. Step 4: Simplify right side
    225,888.82x = 42,155,010,566.22
  5. Step 5: Solve for x
    x = 42,155,010,566.22/225,888.82
  6. Step 6: Final answer
    x = 186,618.40

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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.