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Finding the Fourth Proportional to 487,734.98, 731,420.64 and 167,797.40

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Solution

The fourth proportional to 487,734.98, 731,420.64 and 167,797.40 is: 251,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,734.98 : 731,420.64 = 167,797.40 : x
  2. Step 2: Convert to fraction form
    487,734.98/731,420.64 = 167,797.40/x
  3. Step 3: Cross multiply
    487,734.98x = 731,420.64 × 167,797.40
  4. Step 4: Simplify right side
    487,734.98x = 122,730,481,698.34
  5. Step 5: Solve for x
    x = 122,730,481,698.34/487,734.98
  6. Step 6: Final answer
    x = 251,633.54

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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.