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Finding the Fourth Proportional to 325,157.94, 487,892.43 and 114,894.90

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Solution

The fourth proportional to 325,157.94, 487,892.43 and 114,894.90 is: 172,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,157.94 : 487,892.43 = 114,894.90 : x
  2. Step 2: Convert to fraction form
    325,157.94/487,892.43 = 114,894.90/x
  3. Step 3: Cross multiply
    325,157.94x = 487,892.43 × 114,894.90
  4. Step 4: Simplify right side
    325,157.94x = 56,056,351,955.61
  5. Step 5: Solve for x
    x = 56,056,351,955.61/325,157.94
  6. Step 6: Final answer
    x = 172,397.30

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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.