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Finding the Fourth Proportional to 63,147.72, 87,143.43 and 34,853.40

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Solution

The fourth proportional to 63,147.72, 87,143.43 and 34,853.40 is: 48,097.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,147.72 : 87,143.43 = 34,853.40 : x
  2. Step 2: Convert to fraction form
    63,147.72/87,143.43 = 34,853.40/x
  3. Step 3: Cross multiply
    63,147.72x = 87,143.43 × 34,853.40
  4. Step 4: Simplify right side
    63,147.72x = 3,037,244,823.16
  5. Step 5: Solve for x
    x = 3,037,244,823.16/63,147.72
  6. Step 6: Final answer
    x = 48,097.46

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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.