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Finding the Fourth Proportional to 374,079.70, 561,010.20 and 134,165.80

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Solution

The fourth proportional to 374,079.70, 561,010.20 and 134,165.80 is: 201,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,079.70 : 561,010.20 = 134,165.80 : x
  2. Step 2: Convert to fraction form
    374,079.70/561,010.20 = 134,165.80/x
  3. Step 3: Cross multiply
    374,079.70x = 561,010.20 × 134,165.80
  4. Step 4: Simplify right side
    374,079.70x = 75,268,382,291.16
  5. Step 5: Solve for x
    x = 75,268,382,291.16/374,079.70
  6. Step 6: Final answer
    x = 201,209.48

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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.