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Finding the Fourth Proportional to 58,706.20, 87,903.78 and 30,945.88

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Solution

The fourth proportional to 58,706.20, 87,903.78 and 30,945.88 is: 46,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,706.20 : 87,903.78 = 30,945.88 : x
  2. Step 2: Convert to fraction form
    58,706.20/87,903.78 = 30,945.88/x
  3. Step 3: Cross multiply
    58,706.20x = 87,903.78 × 30,945.88
  4. Step 4: Simplify right side
    58,706.20x = 2,720,259,827.43
  5. Step 5: Solve for x
    x = 2,720,259,827.43/58,706.20
  6. Step 6: Final answer
    x = 46,336.84

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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.