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Finding the Fourth Proportional to 172,693.20, 259,039.80 and 48,034.20

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Solution

The fourth proportional to 172,693.20, 259,039.80 and 48,034.20 is: 72,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,693.20 : 259,039.80 = 48,034.20 : x
  2. Step 2: Convert to fraction form
    172,693.20/259,039.80 = 48,034.20/x
  3. Step 3: Cross multiply
    172,693.20x = 259,039.80 × 48,034.20
  4. Step 4: Simplify right side
    172,693.20x = 12,442,769,561.16
  5. Step 5: Solve for x
    x = 12,442,769,561.16/172,693.20
  6. Step 6: Final answer
    x = 72,051.30

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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.