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Finding the Fourth Proportional to 196,358.04, 294,540 and 74,785.29

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Solution

The fourth proportional to 196,358.04, 294,540 and 74,785.29 is: 112,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,358.04 : 294,540 = 74,785.29 : x
  2. Step 2: Convert to fraction form
    196,358.04/294,540 = 74,785.29/x
  3. Step 3: Cross multiply
    196,358.04x = 294,540 × 74,785.29
  4. Step 4: Simplify right side
    196,358.04x = 22,027,259,316.60
  5. Step 5: Solve for x
    x = 22,027,259,316.60/196,358.04
  6. Step 6: Final answer
    x = 112,179.05

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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.