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Finding the Fourth Proportional to 63,147.84, 87,142.70 and 34,466.56

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Solution

The fourth proportional to 63,147.84, 87,142.70 and 34,466.56 is: 47,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,147.84 : 87,142.70 = 34,466.56 : x
  2. Step 2: Convert to fraction form
    63,147.84/87,142.70 = 34,466.56/x
  3. Step 3: Cross multiply
    63,147.84x = 87,142.70 × 34,466.56
  4. Step 4: Simplify right side
    63,147.84x = 3,003,509,098.11
  5. Step 5: Solve for x
    x = 3,003,509,098.11/63,147.84
  6. Step 6: Final answer
    x = 47,563.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.