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Finding the Fourth Proportional to 230,658.66, 318,293.15 and 133,865.33

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Solution

The fourth proportional to 230,658.66, 318,293.15 and 133,865.33 is: 184,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,658.66 : 318,293.15 = 133,865.33 : x
  2. Step 2: Convert to fraction form
    230,658.66/318,293.15 = 133,865.33/x
  3. Step 3: Cross multiply
    230,658.66x = 318,293.15 × 133,865.33
  4. Step 4: Simplify right side
    230,658.66x = 42,608,415,300.70
  5. Step 5: Solve for x
    x = 42,608,415,300.70/230,658.66
  6. Step 6: Final answer
    x = 184,724.98

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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.