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Finding the Fourth Proportional to 339,387.22, 468,345.54 and 188,474.50

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Solution

The fourth proportional to 339,387.22, 468,345.54 and 188,474.50 is: 260,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,387.22 : 468,345.54 = 188,474.50 : x
  2. Step 2: Convert to fraction form
    339,387.22/468,345.54 = 188,474.50/x
  3. Step 3: Cross multiply
    339,387.22x = 468,345.54 × 188,474.50
  4. Step 4: Simplify right side
    339,387.22x = 88,271,191,478.73
  5. Step 5: Solve for x
    x = 88,271,191,478.73/339,387.22
  6. Step 6: Final answer
    x = 260,089.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.