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Finding the Fourth Proportional to 226,399.38, 312,433.98 and 124,435.98

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Solution

The fourth proportional to 226,399.38, 312,433.98 and 124,435.98 is: 171,723.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,399.38 : 312,433.98 = 124,435.98 : x
  2. Step 2: Convert to fraction form
    226,399.38/312,433.98 = 124,435.98/x
  3. Step 3: Cross multiply
    226,399.38x = 312,433.98 × 124,435.98
  4. Step 4: Simplify right side
    226,399.38x = 38,878,028,486.60
  5. Step 5: Solve for x
    x = 38,878,028,486.60/226,399.38
  6. Step 6: Final answer
    x = 171,723.21

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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.