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Finding the Fourth Proportional to 295,338.45, 442,986.26 and 115,390.04

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Solution

The fourth proportional to 295,338.45, 442,986.26 and 115,390.04 is: 173,076.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,338.45 : 442,986.26 = 115,390.04 : x
  2. Step 2: Convert to fraction form
    295,338.45/442,986.26 = 115,390.04/x
  3. Step 3: Cross multiply
    295,338.45x = 442,986.26 × 115,390.04
  4. Step 4: Simplify right side
    295,338.45x = 51,116,199,468.97
  5. Step 5: Solve for x
    x = 51,116,199,468.97/295,338.45
  6. Step 6: Final answer
    x = 173,076.68

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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.