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Finding the Fourth Proportional to 112,071.60, 168,107.40 and 104,198.40

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Solution

The fourth proportional to 112,071.60, 168,107.40 and 104,198.40 is: 156,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,071.60 : 168,107.40 = 104,198.40 : x
  2. Step 2: Convert to fraction form
    112,071.60/168,107.40 = 104,198.40/x
  3. Step 3: Cross multiply
    112,071.60x = 168,107.40 × 104,198.40
  4. Step 4: Simplify right side
    112,071.60x = 17,516,522,108.16
  5. Step 5: Solve for x
    x = 17,516,522,108.16/112,071.60
  6. Step 6: Final answer
    x = 156,297.60

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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.