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Finding the Fourth Proportional to 150,960.69, 208,330.65 and 82,980.09

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Solution

The fourth proportional to 150,960.69, 208,330.65 and 82,980.09 is: 114,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,960.69 : 208,330.65 = 82,980.09 : x
  2. Step 2: Convert to fraction form
    150,960.69/208,330.65 = 82,980.09/x
  3. Step 3: Cross multiply
    150,960.69x = 208,330.65 × 82,980.09
  4. Step 4: Simplify right side
    150,960.69x = 17,287,296,086.76
  5. Step 5: Solve for x
    x = 17,287,296,086.76/150,960.69
  6. Step 6: Final answer
    x = 114,515.22

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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.