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Finding the Fourth Proportional to 321,511.55, 482,094.76 and 108,208.32

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Solution

The fourth proportional to 321,511.55, 482,094.76 and 108,208.32 is: 162,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,511.55 : 482,094.76 = 108,208.32 : x
  2. Step 2: Convert to fraction form
    321,511.55/482,094.76 = 108,208.32/x
  3. Step 3: Cross multiply
    321,511.55x = 482,094.76 × 108,208.32
  4. Step 4: Simplify right side
    321,511.55x = 52,166,663,167.20
  5. Step 5: Solve for x
    x = 52,166,663,167.20/321,511.55
  6. Step 6: Final answer
    x = 162,254.40

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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.