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Finding the Fourth Proportional to 63,137.76, 87,130.60 and 34,457.64

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Solution

The fourth proportional to 63,137.76, 87,130.60 and 34,457.64 is: 47,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,137.76 : 87,130.60 = 34,457.64 : x
  2. Step 2: Convert to fraction form
    63,137.76/87,130.60 = 34,457.64/x
  3. Step 3: Cross multiply
    63,137.76x = 87,130.60 × 34,457.64
  4. Step 4: Simplify right side
    63,137.76x = 3,002,314,847.78
  5. Step 5: Solve for x
    x = 3,002,314,847.78/63,137.76
  6. Step 6: Final answer
    x = 47,551.81

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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.