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Finding the Fourth Proportional to 143,715.41, 215,563.08 and 53,741.01

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Solution

The fourth proportional to 143,715.41, 215,563.08 and 53,741.01 is: 80,607.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,715.41 : 215,563.08 = 53,741.01 : x
  2. Step 2: Convert to fraction form
    143,715.41/215,563.08 = 53,741.01/x
  3. Step 3: Cross multiply
    143,715.41x = 215,563.08 × 53,741.01
  4. Step 4: Simplify right side
    143,715.41x = 11,584,577,839.44
  5. Step 5: Solve for x
    x = 11,584,577,839.44/143,715.41
  6. Step 6: Final answer
    x = 80,607.77

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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.