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Finding the Fourth Proportional to 170,639.40, 235,469.40 and 94,161.54

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Solution

The fourth proportional to 170,639.40, 235,469.40 and 94,161.54 is: 129,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,639.40 : 235,469.40 = 94,161.54 : x
  2. Step 2: Convert to fraction form
    170,639.40/235,469.40 = 94,161.54/x
  3. Step 3: Cross multiply
    170,639.40x = 235,469.40 × 94,161.54
  4. Step 4: Simplify right side
    170,639.40x = 22,172,161,326.88
  5. Step 5: Solve for x
    x = 22,172,161,326.88/170,639.40
  6. Step 6: Final answer
    x = 129,935.77

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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.