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Finding the Fourth Proportional to 374,105.36, 561,381.60 and 137,471.96

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Solution

The fourth proportional to 374,105.36, 561,381.60 and 137,471.96 is: 206,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,105.36 : 561,381.60 = 137,471.96 : x
  2. Step 2: Convert to fraction form
    374,105.36/561,381.60 = 137,471.96/x
  3. Step 3: Cross multiply
    374,105.36x = 561,381.60 × 137,471.96
  4. Step 4: Simplify right side
    374,105.36x = 77,174,225,365.67
  5. Step 5: Solve for x
    x = 77,174,225,365.67/374,105.36
  6. Step 6: Final answer
    x = 206,290.08

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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.