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Finding the Fourth Proportional to 114,431.39, 171,604.95 and 39,532.31

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Solution

The fourth proportional to 114,431.39, 171,604.95 and 39,532.31 is: 59,283.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,431.39 : 171,604.95 = 39,532.31 : x
  2. Step 2: Convert to fraction form
    114,431.39/171,604.95 = 39,532.31/x
  3. Step 3: Cross multiply
    114,431.39x = 171,604.95 × 39,532.31
  4. Step 4: Simplify right side
    114,431.39x = 6,783,940,080.93
  5. Step 5: Solve for x
    x = 6,783,940,080.93/114,431.39
  6. Step 6: Final answer
    x = 59,283.91

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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.