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Finding the Fourth Proportional to 347,716.65, 521,325.90 and 134,301.90

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Solution

The fourth proportional to 347,716.65, 521,325.90 and 134,301.90 is: 201,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,716.65 : 521,325.90 = 134,301.90 : x
  2. Step 2: Convert to fraction form
    347,716.65/521,325.90 = 134,301.90/x
  3. Step 3: Cross multiply
    347,716.65x = 521,325.90 × 134,301.90
  4. Step 4: Simplify right side
    347,716.65x = 70,015,058,889.21
  5. Step 5: Solve for x
    x = 70,015,058,889.21/347,716.65
  6. Step 6: Final answer
    x = 201,356.65

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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.