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Finding the Fourth Proportional to 87,308.68, 130,962.12 and 37,346.44

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Solution

The fourth proportional to 87,308.68, 130,962.12 and 37,346.44 is: 56,019.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,308.68 : 130,962.12 = 37,346.44 : x
  2. Step 2: Convert to fraction form
    87,308.68/130,962.12 = 37,346.44/x
  3. Step 3: Cross multiply
    87,308.68x = 130,962.12 × 37,346.44
  4. Step 4: Simplify right side
    87,308.68x = 4,890,968,956.85
  5. Step 5: Solve for x
    x = 4,890,968,956.85/87,308.68
  6. Step 6: Final answer
    x = 56,019.28

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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.