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Finding the Fourth Proportional to 348,813.98, 523,169.92 and 166,403.60

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Solution

The fourth proportional to 348,813.98, 523,169.92 and 166,403.60 is: 249,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,813.98 : 523,169.92 = 166,403.60 : x
  2. Step 2: Convert to fraction form
    348,813.98/523,169.92 = 166,403.60/x
  3. Step 3: Cross multiply
    348,813.98x = 523,169.92 × 166,403.60
  4. Step 4: Simplify right side
    348,813.98x = 87,057,354,651.84
  5. Step 5: Solve for x
    x = 87,057,354,651.84/348,813.98
  6. Step 6: Final answer
    x = 249,581.04

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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.