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Finding the Fourth Proportional to 203,311.40, 304,967.10 and 55,567.40

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Solution

The fourth proportional to 203,311.40, 304,967.10 and 55,567.40 is: 83,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,311.40 : 304,967.10 = 55,567.40 : x
  2. Step 2: Convert to fraction form
    203,311.40/304,967.10 = 55,567.40/x
  3. Step 3: Cross multiply
    203,311.40x = 304,967.10 × 55,567.40
  4. Step 4: Simplify right side
    203,311.40x = 16,946,228,832.54
  5. Step 5: Solve for x
    x = 16,946,228,832.54/203,311.40
  6. Step 6: Final answer
    x = 83,351.10

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1.5x scale

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.