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Finding the Fourth Proportional to 92,048.76, 138,072.91 and 25,488.67

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Solution

The fourth proportional to 92,048.76, 138,072.91 and 25,488.67 is: 38,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,048.76 : 138,072.91 = 25,488.67 : x
  2. Step 2: Convert to fraction form
    92,048.76/138,072.91 = 25,488.67/x
  3. Step 3: Cross multiply
    92,048.76x = 138,072.91 × 25,488.67
  4. Step 4: Simplify right side
    92,048.76x = 3,519,294,021.12
  5. Step 5: Solve for x
    x = 3,519,294,021.12/92,048.76
  6. Step 6: Final answer
    x = 38,232.93

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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.