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Finding the Fourth Proportional to 150,619.24, 207,884.10 and 86,953.24

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Solution

The fourth proportional to 150,619.24, 207,884.10 and 86,953.24 is: 120,012.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,619.24 : 207,884.10 = 86,953.24 : x
  2. Step 2: Convert to fraction form
    150,619.24/207,884.10 = 86,953.24/x
  3. Step 3: Cross multiply
    150,619.24x = 207,884.10 × 86,953.24
  4. Step 4: Simplify right side
    150,619.24x = 18,076,196,039.48
  5. Step 5: Solve for x
    x = 18,076,196,039.48/150,619.24
  6. Step 6: Final answer
    x = 120,012.53

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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.