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Finding the Fourth Proportional to 318,154.43, 477,130.21 and 104,882.59

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Solution

The fourth proportional to 318,154.43, 477,130.21 and 104,882.59 is: 157,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,154.43 : 477,130.21 = 104,882.59 : x
  2. Step 2: Convert to fraction form
    318,154.43/477,130.21 = 104,882.59/x
  3. Step 3: Cross multiply
    318,154.43x = 477,130.21 × 104,882.59
  4. Step 4: Simplify right side
    318,154.43x = 50,042,652,192.04
  5. Step 5: Solve for x
    x = 50,042,652,192.04/318,154.43
  6. Step 6: Final answer
    x = 157,290.45

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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.