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Finding the Fourth Proportional to 58,113.54, 87,031.89 and 40,361.92

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Solution

The fourth proportional to 58,113.54, 87,031.89 and 40,361.92 is: 60,446.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,113.54 : 87,031.89 = 40,361.92 : x
  2. Step 2: Convert to fraction form
    58,113.54/87,031.89 = 40,361.92/x
  3. Step 3: Cross multiply
    58,113.54x = 87,031.89 × 40,361.92
  4. Step 4: Simplify right side
    58,113.54x = 3,512,773,964.05
  5. Step 5: Solve for x
    x = 3,512,773,964.05/58,113.54
  6. Step 6: Final answer
    x = 60,446.74

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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.