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Finding the Fourth Proportional to 150,308.46, 207,422.91 and 86,648.94

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Solution

The fourth proportional to 150,308.46, 207,422.91 and 86,648.94 is: 119,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,308.46 : 207,422.91 = 86,648.94 : x
  2. Step 2: Convert to fraction form
    150,308.46/207,422.91 = 86,648.94/x
  3. Step 3: Cross multiply
    150,308.46x = 207,422.91 × 86,648.94
  4. Step 4: Simplify right side
    150,308.46x = 17,972,975,283.22
  5. Step 5: Solve for x
    x = 17,972,975,283.22/150,308.46
  6. Step 6: Final answer
    x = 119,573.94

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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.