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Finding the Fourth Proportional to 203,887.30, 305,830.95 and 185,188.45

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Solution

The fourth proportional to 203,887.30, 305,830.95 and 185,188.45 is: 277,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,887.30 : 305,830.95 = 185,188.45 : x
  2. Step 2: Convert to fraction form
    203,887.30/305,830.95 = 185,188.45/x
  3. Step 3: Cross multiply
    203,887.30x = 305,830.95 × 185,188.45
  4. Step 4: Simplify right side
    203,887.30x = 56,636,359,592.53
  5. Step 5: Solve for x
    x = 56,636,359,592.53/203,887.30
  6. Step 6: Final answer
    x = 277,782.68

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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.