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Finding the Fourth Proportional to 303,901.12, 455,871.12 and 116,912.62

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Solution

The fourth proportional to 303,901.12, 455,871.12 and 116,912.62 is: 175,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,901.12 : 455,871.12 = 116,912.62 : x
  2. Step 2: Convert to fraction form
    303,901.12/455,871.12 = 116,912.62/x
  3. Step 3: Cross multiply
    303,901.12x = 455,871.12 × 116,912.62
  4. Step 4: Simplify right side
    303,901.12x = 53,297,087,810.58
  5. Step 5: Solve for x
    x = 53,297,087,810.58/303,901.12
  6. Step 6: Final answer
    x = 175,376.41

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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.