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Finding the Fourth Proportional to 203,999.70, 305,999.55 and 183,263.70

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Solution

The fourth proportional to 203,999.70, 305,999.55 and 183,263.70 is: 274,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,999.70 : 305,999.55 = 183,263.70 : x
  2. Step 2: Convert to fraction form
    203,999.70/305,999.55 = 183,263.70/x
  3. Step 3: Cross multiply
    203,999.70x = 305,999.55 × 183,263.70
  4. Step 4: Simplify right side
    203,999.70x = 56,078,609,731.34
  5. Step 5: Solve for x
    x = 56,078,609,731.34/203,999.70
  6. Step 6: Final answer
    x = 274,895.55

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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.