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Finding the Fourth Proportional to 481,606.60, 722,625.90 and 166,289.80

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Solution

The fourth proportional to 481,606.60, 722,625.90 and 166,289.80 is: 249,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,606.60 : 722,625.90 = 166,289.80 : x
  2. Step 2: Convert to fraction form
    481,606.60/722,625.90 = 166,289.80/x
  3. Step 3: Cross multiply
    481,606.60x = 722,625.90 × 166,289.80
  4. Step 4: Simplify right side
    481,606.60x = 120,165,316,385.82
  5. Step 5: Solve for x
    x = 120,165,316,385.82/481,606.60
  6. Step 6: Final answer
    x = 249,509.28

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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.