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Finding the Fourth Proportional to 374,397.36, 561,694.56 and 134,535.48

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Solution

The fourth proportional to 374,397.36, 561,694.56 and 134,535.48 is: 201,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,397.36 : 561,694.56 = 134,535.48 : x
  2. Step 2: Convert to fraction form
    374,397.36/561,694.56 = 134,535.48/x
  3. Step 3: Cross multiply
    374,397.36x = 561,694.56 × 134,535.48
  4. Step 4: Simplify right side
    374,397.36x = 75,567,847,242.99
  5. Step 5: Solve for x
    x = 75,567,847,242.99/374,397.36
  6. Step 6: Final answer
    x = 201,838.62

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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.