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Finding the Fourth Proportional to 90,960.58, 136,188.96 and 46,491.58

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Solution

The fourth proportional to 90,960.58, 136,188.96 and 46,491.58 is: 69,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,960.58 : 136,188.96 = 46,491.58 : x
  2. Step 2: Convert to fraction form
    90,960.58/136,188.96 = 46,491.58/x
  3. Step 3: Cross multiply
    90,960.58x = 136,188.96 × 46,491.58
  4. Step 4: Simplify right side
    90,960.58x = 6,331,639,928.96
  5. Step 5: Solve for x
    x = 6,331,639,928.96/90,960.58
  6. Step 6: Final answer
    x = 69,608.61

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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.