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Finding the Fourth Proportional to 538,564.80, 807,847.20 and 164,539.20

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Solution

The fourth proportional to 538,564.80, 807,847.20 and 164,539.20 is: 246,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,564.80 : 807,847.20 = 164,539.20 : x
  2. Step 2: Convert to fraction form
    538,564.80/807,847.20 = 164,539.20/x
  3. Step 3: Cross multiply
    538,564.80x = 807,847.20 × 164,539.20
  4. Step 4: Simplify right side
    538,564.80x = 132,922,532,010.24
  5. Step 5: Solve for x
    x = 132,922,532,010.24/538,564.80
  6. Step 6: Final answer
    x = 246,808.80

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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.