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Finding the Fourth Proportional to 203,093.40, 304,640.10 and 92,285.40

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Solution

The fourth proportional to 203,093.40, 304,640.10 and 92,285.40 is: 138,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,093.40 : 304,640.10 = 92,285.40 : x
  2. Step 2: Convert to fraction form
    203,093.40/304,640.10 = 92,285.40/x
  3. Step 3: Cross multiply
    203,093.40x = 304,640.10 × 92,285.40
  4. Step 4: Simplify right side
    203,093.40x = 28,113,833,484.54
  5. Step 5: Solve for x
    x = 28,113,833,484.54/203,093.40
  6. Step 6: Final answer
    x = 138,428.10

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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.