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Finding the Fourth Proportional to 172,557.83, 258,899.03 and 60,254.60

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Solution

The fourth proportional to 172,557.83, 258,899.03 and 60,254.60 is: 90,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,557.83 : 258,899.03 = 60,254.60 : x
  2. Step 2: Convert to fraction form
    172,557.83/258,899.03 = 60,254.60/x
  3. Step 3: Cross multiply
    172,557.83x = 258,899.03 × 60,254.60
  4. Step 4: Simplify right side
    172,557.83x = 15,599,857,493.04
  5. Step 5: Solve for x
    x = 15,599,857,493.04/172,557.83
  6. Step 6: Final answer
    x = 90,403.65

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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.