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Finding the Fourth Proportional to 92,553.60, 138,828.78 and 36,399.54

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Solution

The fourth proportional to 92,553.60, 138,828.78 and 36,399.54 is: 54,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,553.60 : 138,828.78 = 36,399.54 : x
  2. Step 2: Convert to fraction form
    92,553.60/138,828.78 = 36,399.54/x
  3. Step 3: Cross multiply
    92,553.60x = 138,828.78 × 36,399.54
  4. Step 4: Simplify right side
    92,553.60x = 5,053,303,730.76
  5. Step 5: Solve for x
    x = 5,053,303,730.76/92,553.60
  6. Step 6: Final answer
    x = 54,598.67

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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.