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Finding the Fourth Proportional to 150,798.88, 208,119.09 and 86,274.10

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Solution

The fourth proportional to 150,798.88, 208,119.09 and 86,274.10 is: 119,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,798.88 : 208,119.09 = 86,274.10 : x
  2. Step 2: Convert to fraction form
    150,798.88/208,119.09 = 86,274.10/x
  3. Step 3: Cross multiply
    150,798.88x = 208,119.09 × 86,274.10
  4. Step 4: Simplify right side
    150,798.88x = 17,955,287,182.57
  5. Step 5: Solve for x
    x = 17,955,287,182.57/150,798.88
  6. Step 6: Final answer
    x = 119,067.78

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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.