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Finding the Fourth Proportional to 325,335.40, 488,003.10 and 167,871.40

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Solution

The fourth proportional to 325,335.40, 488,003.10 and 167,871.40 is: 251,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,335.40 : 488,003.10 = 167,871.40 : x
  2. Step 2: Convert to fraction form
    325,335.40/488,003.10 = 167,871.40/x
  3. Step 3: Cross multiply
    325,335.40x = 488,003.10 × 167,871.40
  4. Step 4: Simplify right side
    325,335.40x = 81,921,763,601.34
  5. Step 5: Solve for x
    x = 81,921,763,601.34/325,335.40
  6. Step 6: Final answer
    x = 251,807.10

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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.