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Finding the Fourth Proportional to 79,304.54, 118,958.90 and 31,271.13

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Solution

The fourth proportional to 79,304.54, 118,958.90 and 31,271.13 is: 46,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,304.54 : 118,958.90 = 31,271.13 : x
  2. Step 2: Convert to fraction form
    79,304.54/118,958.90 = 31,271.13/x
  3. Step 3: Cross multiply
    79,304.54x = 118,958.90 × 31,271.13
  4. Step 4: Simplify right side
    79,304.54x = 3,719,979,070.20
  5. Step 5: Solve for x
    x = 3,719,979,070.20/79,304.54
  6. Step 6: Final answer
    x = 46,907.52

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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.