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Finding the Fourth Proportional to 383,513.66, 575,529.69 and 134,197.82

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Solution

The fourth proportional to 383,513.66, 575,529.69 and 134,197.82 is: 201,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,513.66 : 575,529.69 = 134,197.82 : x
  2. Step 2: Convert to fraction form
    383,513.66/575,529.69 = 134,197.82/x
  3. Step 3: Cross multiply
    383,513.66x = 575,529.69 × 134,197.82
  4. Step 4: Simplify right side
    383,513.66x = 77,234,829,743.28
  5. Step 5: Solve for x
    x = 77,234,829,743.28/383,513.66
  6. Step 6: Final answer
    x = 201,387.43

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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.