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Finding the Fourth Proportional to 121,348.10, 182,022.15 and 115,904.90

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Solution

The fourth proportional to 121,348.10, 182,022.15 and 115,904.90 is: 173,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,348.10 : 182,022.15 = 115,904.90 : x
  2. Step 2: Convert to fraction form
    121,348.10/182,022.15 = 115,904.90/x
  3. Step 3: Cross multiply
    121,348.10x = 182,022.15 × 115,904.90
  4. Step 4: Simplify right side
    121,348.10x = 21,097,259,093.54
  5. Step 5: Solve for x
    x = 21,097,259,093.54/121,348.10
  6. Step 6: Final answer
    x = 173,857.35

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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.