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Finding the Fourth Proportional to 150,657.48, 207,905.44 and 86,993.88

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Solution

The fourth proportional to 150,657.48, 207,905.44 and 86,993.88 is: 120,050.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,657.48 : 207,905.44 = 86,993.88 : x
  2. Step 2: Convert to fraction form
    150,657.48/207,905.44 = 86,993.88/x
  3. Step 3: Cross multiply
    150,657.48x = 207,905.44 × 86,993.88
  4. Step 4: Simplify right side
    150,657.48x = 18,086,500,898.71
  5. Step 5: Solve for x
    x = 18,086,500,898.71/150,657.48
  6. Step 6: Final answer
    x = 120,050.47

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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.