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Finding the Fourth Proportional to 325,108.98, 487,455.72 and 156,293.39

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Solution

The fourth proportional to 325,108.98, 487,455.72 and 156,293.39 is: 234,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,108.98 : 487,455.72 = 156,293.39 : x
  2. Step 2: Convert to fraction form
    325,108.98/487,455.72 = 156,293.39/x
  3. Step 3: Cross multiply
    325,108.98x = 487,455.72 × 156,293.39
  4. Step 4: Simplify right side
    325,108.98x = 76,186,104,516.41
  5. Step 5: Solve for x
    x = 76,186,104,516.41/325,108.98
  6. Step 6: Final answer
    x = 234,340.20

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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.