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Finding the Fourth Proportional to 58,221.55, 87,270.03 and 30,113.30

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Solution

The fourth proportional to 58,221.55, 87,270.03 and 30,113.30 is: 45,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.55 : 87,270.03 = 30,113.30 : x
  2. Step 2: Convert to fraction form
    58,221.55/87,270.03 = 30,113.30/x
  3. Step 3: Cross multiply
    58,221.55x = 87,270.03 × 30,113.30
  4. Step 4: Simplify right side
    58,221.55x = 2,627,988,713.18
  5. Step 5: Solve for x
    x = 2,627,988,713.18/58,221.55
  6. Step 6: Final answer
    x = 45,137.73

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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.