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Finding the Fourth Proportional to 92,978.46, 139,466.48 and 22,858.38

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Solution

The fourth proportional to 92,978.46, 139,466.48 and 22,858.38 is: 34,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,978.46 : 139,466.48 = 22,858.38 : x
  2. Step 2: Convert to fraction form
    92,978.46/139,466.48 = 22,858.38/x
  3. Step 3: Cross multiply
    92,978.46x = 139,466.48 × 22,858.38
  4. Step 4: Simplify right side
    92,978.46x = 3,187,977,682.81
  5. Step 5: Solve for x
    x = 3,187,977,682.81/92,978.46
  6. Step 6: Final answer
    x = 34,287.27

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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.