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Finding the Fourth Proportional to 235,449.94, 353,396.85 and 85,834.84

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Solution

The fourth proportional to 235,449.94, 353,396.85 and 85,834.84 is: 128,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,449.94 : 353,396.85 = 85,834.84 : x
  2. Step 2: Convert to fraction form
    235,449.94/353,396.85 = 85,834.84/x
  3. Step 3: Cross multiply
    235,449.94x = 353,396.85 × 85,834.84
  4. Step 4: Simplify right side
    235,449.94x = 30,333,762,076.25
  5. Step 5: Solve for x
    x = 30,333,762,076.25/235,449.94
  6. Step 6: Final answer
    x = 128,833.17

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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.