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Finding the Fourth Proportional to 347,358.38, 521,017.41 and 134,084.57

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Solution

The fourth proportional to 347,358.38, 521,017.41 and 134,084.57 is: 201,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,358.38 : 521,017.41 = 134,084.57 : x
  2. Step 2: Convert to fraction form
    347,358.38/521,017.41 = 134,084.57/x
  3. Step 3: Cross multiply
    347,358.38x = 521,017.41 × 134,084.57
  4. Step 4: Simplify right side
    347,358.38x = 69,860,395,382.36
  5. Step 5: Solve for x
    x = 69,860,395,382.36/347,358.38
  6. Step 6: Final answer
    x = 201,119.07

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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.