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Finding the Fourth Proportional to 162,029.28, 243,041.04 and 43,713.12

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Solution

The fourth proportional to 162,029.28, 243,041.04 and 43,713.12 is: 65,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,029.28 : 243,041.04 = 43,713.12 : x
  2. Step 2: Convert to fraction form
    162,029.28/243,041.04 = 43,713.12/x
  3. Step 3: Cross multiply
    162,029.28x = 243,041.04 × 43,713.12
  4. Step 4: Simplify right side
    162,029.28x = 10,624,082,146.44
  5. Step 5: Solve for x
    x = 10,624,082,146.44/162,029.28
  6. Step 6: Final answer
    x = 65,568.90

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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.