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Finding the Fourth Proportional to 374,305.92, 561,681.24 and 137,814.67

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Solution

The fourth proportional to 374,305.92, 561,681.24 and 137,814.67 is: 206,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,305.92 : 561,681.24 = 137,814.67 : x
  2. Step 2: Convert to fraction form
    374,305.92/561,681.24 = 137,814.67/x
  3. Step 3: Cross multiply
    374,305.92x = 561,681.24 × 137,814.67
  4. Step 4: Simplify right side
    374,305.92x = 77,407,914,735.79
  5. Step 5: Solve for x
    x = 77,407,914,735.79/374,305.92
  6. Step 6: Final answer
    x = 206,803.88

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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.