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Finding the Fourth Proportional to 325,197.04, 487,388.91 and 156,685.72

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Solution

The fourth proportional to 325,197.04, 487,388.91 and 156,685.72 is: 234,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,197.04 : 487,388.91 = 156,685.72 : x
  2. Step 2: Convert to fraction form
    325,197.04/487,388.91 = 156,685.72/x
  3. Step 3: Cross multiply
    325,197.04x = 487,388.91 × 156,685.72
  4. Step 4: Simplify right side
    325,197.04x = 76,366,882,283.37
  5. Step 5: Solve for x
    x = 76,366,882,283.37/325,197.04
  6. Step 6: Final answer
    x = 234,832.65

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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.