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Finding the Fourth Proportional to 403,270.80, 604,906.20 and 166,534.80

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Solution

The fourth proportional to 403,270.80, 604,906.20 and 166,534.80 is: 249,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,270.80 : 604,906.20 = 166,534.80 : x
  2. Step 2: Convert to fraction form
    403,270.80/604,906.20 = 166,534.80/x
  3. Step 3: Cross multiply
    403,270.80x = 604,906.20 × 166,534.80
  4. Step 4: Simplify right side
    403,270.80x = 100,737,933,035.76
  5. Step 5: Solve for x
    x = 100,737,933,035.76/403,270.80
  6. Step 6: Final answer
    x = 249,802.20

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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.