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Finding the Fourth Proportional to 235,381.80, 324,794.82 and 139,853.64

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Solution

The fourth proportional to 235,381.80, 324,794.82 and 139,853.64 is: 192,978.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,381.80 : 324,794.82 = 139,853.64 : x
  2. Step 2: Convert to fraction form
    235,381.80/324,794.82 = 139,853.64/x
  3. Step 3: Cross multiply
    235,381.80x = 324,794.82 × 139,853.64
  4. Step 4: Simplify right side
    235,381.80x = 45,423,737,830.14
  5. Step 5: Solve for x
    x = 45,423,737,830.14/235,381.80
  6. Step 6: Final answer
    x = 192,978.97

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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.