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Finding the Fourth Proportional to 325,735.15, 488,482.64 and 112,448.79

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Solution

The fourth proportional to 325,735.15, 488,482.64 and 112,448.79 is: 168,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,735.15 : 488,482.64 = 112,448.79 : x
  2. Step 2: Convert to fraction form
    325,735.15/488,482.64 = 112,448.79/x
  3. Step 3: Cross multiply
    325,735.15x = 488,482.64 × 112,448.79
  4. Step 4: Simplify right side
    325,735.15x = 54,929,279,361.59
  5. Step 5: Solve for x
    x = 54,929,279,361.59/325,735.15
  6. Step 6: Final answer
    x = 168,631.72

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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.