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Finding the Fourth Proportional to 263,463.84, 395,154.24 and 85,969.92

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Solution

The fourth proportional to 263,463.84, 395,154.24 and 85,969.92 is: 128,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,463.84 : 395,154.24 = 85,969.92 : x
  2. Step 2: Convert to fraction form
    263,463.84/395,154.24 = 85,969.92/x
  3. Step 3: Cross multiply
    263,463.84x = 395,154.24 × 85,969.92
  4. Step 4: Simplify right side
    263,463.84x = 33,971,378,400.46
  5. Step 5: Solve for x
    x = 33,971,378,400.46/263,463.84
  6. Step 6: Final answer
    x = 128,941.33

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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.