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Finding the Fourth Proportional to 201,903.30, 302,526.90 and 168,442.20

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Solution

The fourth proportional to 201,903.30, 302,526.90 and 168,442.20 is: 252,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,903.30 : 302,526.90 = 168,442.20 : x
  2. Step 2: Convert to fraction form
    201,903.30/302,526.90 = 168,442.20/x
  3. Step 3: Cross multiply
    201,903.30x = 302,526.90 × 168,442.20
  4. Step 4: Simplify right side
    201,903.30x = 50,958,296,595.18
  5. Step 5: Solve for x
    x = 50,958,296,595.18/201,903.30
  6. Step 6: Final answer
    x = 252,389.62

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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.