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Finding the Fourth Proportional to 230,651.89, 318,283.83 and 133,858.58

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Solution

The fourth proportional to 230,651.89, 318,283.83 and 133,858.58 is: 184,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,651.89 : 318,283.83 = 133,858.58 : x
  2. Step 2: Convert to fraction form
    230,651.89/318,283.83 = 133,858.58/x
  3. Step 3: Cross multiply
    230,651.89x = 318,283.83 × 133,858.58
  4. Step 4: Simplify right side
    230,651.89x = 42,605,019,929.34
  5. Step 5: Solve for x
    x = 42,605,019,929.34/230,651.89
  6. Step 6: Final answer
    x = 184,715.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.