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Finding the Fourth Proportional to 353,123.60, 529,685.40 and 200,908.40

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Solution

The fourth proportional to 353,123.60, 529,685.40 and 200,908.40 is: 301,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,123.60 : 529,685.40 = 200,908.40 : x
  2. Step 2: Convert to fraction form
    353,123.60/529,685.40 = 200,908.40/x
  3. Step 3: Cross multiply
    353,123.60x = 529,685.40 × 200,908.40
  4. Step 4: Simplify right side
    353,123.60x = 106,418,246,217.36
  5. Step 5: Solve for x
    x = 106,418,246,217.36/353,123.60
  6. Step 6: Final answer
    x = 301,362.60

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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.