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Finding the Fourth Proportional to 369,687.60, 510,168.60 and 199,922.40

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Solution

The fourth proportional to 369,687.60, 510,168.60 and 199,922.40 is: 275,892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,687.60 : 510,168.60 = 199,922.40 : x
  2. Step 2: Convert to fraction form
    369,687.60/510,168.60 = 199,922.40/x
  3. Step 3: Cross multiply
    369,687.60x = 510,168.60 × 199,922.40
  4. Step 4: Simplify right side
    369,687.60x = 101,994,130,916.64
  5. Step 5: Solve for x
    x = 101,994,130,916.64/369,687.60
  6. Step 6: Final answer
    x = 275,892.76

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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.