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Finding the Fourth Proportional to 321,951.48, 482,730.39 and 153,523.32

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Solution

The fourth proportional to 321,951.48, 482,730.39 and 153,523.32 is: 230,191.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,951.48 : 482,730.39 = 153,523.32 : x
  2. Step 2: Convert to fraction form
    321,951.48/482,730.39 = 153,523.32/x
  3. Step 3: Cross multiply
    321,951.48x = 482,730.39 × 153,523.32
  4. Step 4: Simplify right side
    321,951.48x = 74,110,372,137.69
  5. Step 5: Solve for x
    x = 74,110,372,137.69/321,951.48
  6. Step 6: Final answer
    x = 230,191.12

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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.