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Finding the Fourth Proportional to 201,282.58, 278,053.41 and 190,653.76

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Solution

The fourth proportional to 201,282.58, 278,053.41 and 190,653.76 is: 263,370.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,282.58 : 278,053.41 = 190,653.76 : x
  2. Step 2: Convert to fraction form
    201,282.58/278,053.41 = 190,653.76/x
  3. Step 3: Cross multiply
    201,282.58x = 278,053.41 × 190,653.76
  4. Step 4: Simplify right side
    201,282.58x = 53,011,928,097.32
  5. Step 5: Solve for x
    x = 53,011,928,097.32/201,282.58
  6. Step 6: Final answer
    x = 263,370.67

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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.