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Finding the Fourth Proportional to 348,318.64, 480,684.99 and 195,390.73

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Solution

The fourth proportional to 348,318.64, 480,684.99 and 195,390.73 is: 269,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,318.64 : 480,684.99 = 195,390.73 : x
  2. Step 2: Convert to fraction form
    348,318.64/480,684.99 = 195,390.73/x
  3. Step 3: Cross multiply
    348,318.64x = 480,684.99 × 195,390.73
  4. Step 4: Simplify right side
    348,318.64x = 93,921,391,096.14
  5. Step 5: Solve for x
    x = 93,921,391,096.14/348,318.64
  6. Step 6: Final answer
    x = 269,642.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.