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Finding the Fourth Proportional to 104,311.62, 156,465.81 and 41,980.50

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Solution

The fourth proportional to 104,311.62, 156,465.81 and 41,980.50 is: 62,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,311.62 : 156,465.81 = 41,980.50 : x
  2. Step 2: Convert to fraction form
    104,311.62/156,465.81 = 41,980.50/x
  3. Step 3: Cross multiply
    104,311.62x = 156,465.81 × 41,980.50
  4. Step 4: Simplify right side
    104,311.62x = 6,568,512,936.71
  5. Step 5: Solve for x
    x = 6,568,512,936.71/104,311.62
  6. Step 6: Final answer
    x = 62,970.10

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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.