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Finding the Fourth Proportional to 172,158.30, 258,248.76 and 45,796.68

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Solution

The fourth proportional to 172,158.30, 258,248.76 and 45,796.68 is: 68,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,158.30 : 258,248.76 = 45,796.68 : x
  2. Step 2: Convert to fraction form
    172,158.30/258,248.76 = 45,796.68/x
  3. Step 3: Cross multiply
    172,158.30x = 258,248.76 × 45,796.68
  4. Step 4: Simplify right side
    172,158.30x = 11,826,935,822.12
  5. Step 5: Solve for x
    x = 11,826,935,822.12/172,158.30
  6. Step 6: Final answer
    x = 68,698.03

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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.