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Finding the Fourth Proportional to 216,086.69, 324,008.54 and 148,697.93

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Solution

The fourth proportional to 216,086.69, 324,008.54 and 148,697.93 is: 222,963.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,086.69 : 324,008.54 = 148,697.93 : x
  2. Step 2: Convert to fraction form
    216,086.69/324,008.54 = 148,697.93/x
  3. Step 3: Cross multiply
    216,086.69x = 324,008.54 × 148,697.93
  4. Step 4: Simplify right side
    216,086.69x = 48,179,399,200.32
  5. Step 5: Solve for x
    x = 48,179,399,200.32/216,086.69
  6. Step 6: Final answer
    x = 222,963.29

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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.