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Finding the Fourth Proportional to 303,466.80, 455,382.45 and 125,955.30

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Solution

The fourth proportional to 303,466.80, 455,382.45 and 125,955.30 is: 189,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,466.80 : 455,382.45 = 125,955.30 : x
  2. Step 2: Convert to fraction form
    303,466.80/455,382.45 = 125,955.30/x
  3. Step 3: Cross multiply
    303,466.80x = 455,382.45 × 125,955.30
  4. Step 4: Simplify right side
    303,466.80x = 57,357,833,104.49
  5. Step 5: Solve for x
    x = 57,357,833,104.49/303,466.80
  6. Step 6: Final answer
    x = 189,008.59

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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.