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Finding the Fourth Proportional to 103,704.54, 143,113.11 and 58,995.42

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Solution

The fourth proportional to 103,704.54, 143,113.11 and 58,995.42 is: 81,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,704.54 : 143,113.11 = 58,995.42 : x
  2. Step 2: Convert to fraction form
    103,704.54/143,113.11 = 58,995.42/x
  3. Step 3: Cross multiply
    103,704.54x = 143,113.11 × 58,995.42
  4. Step 4: Simplify right side
    103,704.54x = 8,443,018,031.96
  5. Step 5: Solve for x
    x = 8,443,018,031.96/103,704.54
  6. Step 6: Final answer
    x = 81,414.16

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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.