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Finding the Fourth Proportional to 325,468.79, 487,858.73 and 148,100.36

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Solution

The fourth proportional to 325,468.79, 487,858.73 and 148,100.36 is: 221,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,468.79 : 487,858.73 = 148,100.36 : x
  2. Step 2: Convert to fraction form
    325,468.79/487,858.73 = 148,100.36/x
  3. Step 3: Cross multiply
    325,468.79x = 487,858.73 × 148,100.36
  4. Step 4: Simplify right side
    325,468.79x = 72,252,052,801.64
  5. Step 5: Solve for x
    x = 72,252,052,801.64/325,468.79
  6. Step 6: Final answer
    x = 221,993.80

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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.