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Finding the Fourth Proportional to 63,102.34, 87,080.88 and 34,421.86

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Solution

The fourth proportional to 63,102.34, 87,080.88 and 34,421.86 is: 47,501.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,102.34 : 87,080.88 = 34,421.86 : x
  2. Step 2: Convert to fraction form
    63,102.34/87,080.88 = 34,421.86/x
  3. Step 3: Cross multiply
    63,102.34x = 87,080.88 × 34,421.86
  4. Step 4: Simplify right side
    63,102.34x = 2,997,485,860.04
  5. Step 5: Solve for x
    x = 2,997,485,860.04/63,102.34
  6. Step 6: Final answer
    x = 47,501.98

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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.