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Finding the Fourth Proportional to 267,991.68, 369,812.16 and 147,109.44

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Solution

The fourth proportional to 267,991.68, 369,812.16 and 147,109.44 is: 203,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,991.68 : 369,812.16 = 147,109.44 : x
  2. Step 2: Convert to fraction form
    267,991.68/369,812.16 = 147,109.44/x
  3. Step 3: Cross multiply
    267,991.68x = 369,812.16 × 147,109.44
  4. Step 4: Simplify right side
    267,991.68x = 54,402,859,762.79
  5. Step 5: Solve for x
    x = 54,402,859,762.79/267,991.68
  6. Step 6: Final answer
    x = 203,002.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.