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Finding the Fourth Proportional to 113,884.60, 170,826.90 and 112,329.40

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Solution

The fourth proportional to 113,884.60, 170,826.90 and 112,329.40 is: 168,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,884.60 : 170,826.90 = 112,329.40 : x
  2. Step 2: Convert to fraction form
    113,884.60/170,826.90 = 112,329.40/x
  3. Step 3: Cross multiply
    113,884.60x = 170,826.90 × 112,329.40
  4. Step 4: Simplify right side
    113,884.60x = 19,188,883,180.86
  5. Step 5: Solve for x
    x = 19,188,883,180.86/113,884.60
  6. Step 6: Final answer
    x = 168,494.10

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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.