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Finding the Fourth Proportional to 245,625.70, 368,438.55 and 133,651.30

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Solution

The fourth proportional to 245,625.70, 368,438.55 and 133,651.30 is: 200,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,625.70 : 368,438.55 = 133,651.30 : x
  2. Step 2: Convert to fraction form
    245,625.70/368,438.55 = 133,651.30/x
  3. Step 3: Cross multiply
    245,625.70x = 368,438.55 × 133,651.30
  4. Step 4: Simplify right side
    245,625.70x = 49,242,291,177.62
  5. Step 5: Solve for x
    x = 49,242,291,177.62/245,625.70
  6. Step 6: Final answer
    x = 200,476.95

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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.