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Finding the Fourth Proportional to 375,379.20, 563,099.99 and 122,654.34

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Solution

The fourth proportional to 375,379.20, 563,099.99 and 122,654.34 is: 183,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,379.20 : 563,099.99 = 122,654.34 : x
  2. Step 2: Convert to fraction form
    375,379.20/563,099.99 = 122,654.34/x
  3. Step 3: Cross multiply
    375,379.20x = 563,099.99 × 122,654.34
  4. Step 4: Simplify right side
    375,379.20x = 69,066,657,014.18
  5. Step 5: Solve for x
    x = 69,066,657,014.18/375,379.20
  6. Step 6: Final answer
    x = 183,991.70

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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.