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Finding the Fourth Proportional to 303,457.28, 455,317.12 and 116,425.04

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Solution

The fourth proportional to 303,457.28, 455,317.12 and 116,425.04 is: 174,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,457.28 : 455,317.12 = 116,425.04 : x
  2. Step 2: Convert to fraction form
    303,457.28/455,317.12 = 116,425.04/x
  3. Step 3: Cross multiply
    303,457.28x = 455,317.12 × 116,425.04
  4. Step 4: Simplify right side
    303,457.28x = 53,010,313,908.68
  5. Step 5: Solve for x
    x = 53,010,313,908.68/303,457.28
  6. Step 6: Final answer
    x = 174,687.90

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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.