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Finding the Fourth Proportional to 294,390.55, 441,290.55 and 136,729.72

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Solution

The fourth proportional to 294,390.55, 441,290.55 and 136,729.72 is: 204,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,390.55 : 441,290.55 = 136,729.72 : x
  2. Step 2: Convert to fraction form
    294,390.55/441,290.55 = 136,729.72/x
  3. Step 3: Cross multiply
    294,390.55x = 441,290.55 × 136,729.72
  4. Step 4: Simplify right side
    294,390.55x = 60,337,533,340.15
  5. Step 5: Solve for x
    x = 60,337,533,340.15/294,390.55
  6. Step 6: Final answer
    x = 204,957.44

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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.