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Finding the Fourth Proportional to 325,070.56, 487,702.43 and 156,542.16

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Solution

The fourth proportional to 325,070.56, 487,702.43 and 156,542.16 is: 234,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,070.56 : 487,702.43 = 156,542.16 : x
  2. Step 2: Convert to fraction form
    325,070.56/487,702.43 = 156,542.16/x
  3. Step 3: Cross multiply
    325,070.56x = 487,702.43 × 156,542.16
  4. Step 4: Simplify right side
    325,070.56x = 76,345,992,220.80
  5. Step 5: Solve for x
    x = 76,345,992,220.80/325,070.56
  6. Step 6: Final answer
    x = 234,859.76

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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.