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Finding the Fourth Proportional to 303,393.32, 455,293.12 and 125,900.50

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Solution

The fourth proportional to 303,393.32, 455,293.12 and 125,900.50 is: 188,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,393.32 : 455,293.12 = 125,900.50 : x
  2. Step 2: Convert to fraction form
    303,393.32/455,293.12 = 125,900.50/x
  3. Step 3: Cross multiply
    303,393.32x = 455,293.12 × 125,900.50
  4. Step 4: Simplify right side
    303,393.32x = 57,321,631,454.56
  5. Step 5: Solve for x
    x = 57,321,631,454.56/303,393.32
  6. Step 6: Final answer
    x = 188,935.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.