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Finding the Fourth Proportional to 225,986.95, 311,861.12 and 124,014.12

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Solution

The fourth proportional to 225,986.95, 311,861.12 and 124,014.12 is: 171,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,986.95 : 311,861.12 = 124,014.12 : x
  2. Step 2: Convert to fraction form
    225,986.95/311,861.12 = 124,014.12/x
  3. Step 3: Cross multiply
    225,986.95x = 311,861.12 × 124,014.12
  4. Step 4: Simplify right side
    225,986.95x = 38,675,182,359.01
  5. Step 5: Solve for x
    x = 38,675,182,359.01/225,986.95
  6. Step 6: Final answer
    x = 171,139.01

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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.