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Finding the Fourth Proportional to 150,298.56, 207,418.56 and 83,230.56

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Solution

The fourth proportional to 150,298.56, 207,418.56 and 83,230.56 is: 114,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,298.56 : 207,418.56 = 83,230.56 : x
  2. Step 2: Convert to fraction form
    150,298.56/207,418.56 = 83,230.56/x
  3. Step 3: Cross multiply
    150,298.56x = 207,418.56 × 83,230.56
  4. Step 4: Simplify right side
    150,298.56x = 17,263,562,903.19
  5. Step 5: Solve for x
    x = 17,263,562,903.19/150,298.56
  6. Step 6: Final answer
    x = 114,861.80

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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.