Home / 374,105.16-561,381.30-137,471.76

Finding the Fourth Proportional to 374,105.16, 561,381.30 and 137,471.76

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Solution

The fourth proportional to 374,105.16, 561,381.30 and 137,471.76 is: 206,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,105.16 : 561,381.30 = 137,471.76 : x
  2. Step 2: Convert to fraction form
    374,105.16/561,381.30 = 137,471.76/x
  3. Step 3: Cross multiply
    374,105.16x = 561,381.30 × 137,471.76
  4. Step 4: Simplify right side
    374,105.16x = 77,174,075,342.09
  5. Step 5: Solve for x
    x = 77,174,075,342.09/374,105.16
  6. Step 6: Final answer
    x = 206,289.79

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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.