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Finding the Fourth Proportional to 619,115.48, 928,674.48 and 169,842.50

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Solution

The fourth proportional to 619,115.48, 928,674.48 and 169,842.50 is: 254,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,115.48 : 928,674.48 = 169,842.50 : x
  2. Step 2: Convert to fraction form
    619,115.48/928,674.48 = 169,842.50/x
  3. Step 3: Cross multiply
    619,115.48x = 928,674.48 × 169,842.50
  4. Step 4: Simplify right side
    619,115.48x = 157,728,395,369.40
  5. Step 5: Solve for x
    x = 157,728,395,369.40/619,115.48
  6. Step 6: Final answer
    x = 254,764.10

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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.