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Finding the Fourth Proportional to 58,031.44, 86,912.15 and 56,435.14

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Solution

The fourth proportional to 58,031.44, 86,912.15 and 56,435.14 is: 84,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,031.44 : 86,912.15 = 56,435.14 : x
  2. Step 2: Convert to fraction form
    58,031.44/86,912.15 = 56,435.14/x
  3. Step 3: Cross multiply
    58,031.44x = 86,912.15 × 56,435.14
  4. Step 4: Simplify right side
    58,031.44x = 4,904,899,352.95
  5. Step 5: Solve for x
    x = 4,904,899,352.95/58,031.44
  6. Step 6: Final answer
    x = 84,521.41

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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.