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Finding the Fourth Proportional to 150,635.67, 207,884.76 and 86,108.23

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Solution

The fourth proportional to 150,635.67, 207,884.76 and 86,108.23 is: 118,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,635.67 : 207,884.76 = 86,108.23 : x
  2. Step 2: Convert to fraction form
    150,635.67/207,884.76 = 86,108.23/x
  3. Step 3: Cross multiply
    150,635.67x = 207,884.76 × 86,108.23
  4. Step 4: Simplify right side
    150,635.67x = 17,900,588,727.57
  5. Step 5: Solve for x
    x = 17,900,588,727.57/150,635.67
  6. Step 6: Final answer
    x = 118,833.66

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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.