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Finding the Fourth Proportional to 107,492.87, 161,128.14 and 36,391.98

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Solution

The fourth proportional to 107,492.87, 161,128.14 and 36,391.98 is: 54,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,492.87 : 161,128.14 = 36,391.98 : x
  2. Step 2: Convert to fraction form
    107,492.87/161,128.14 = 36,391.98/x
  3. Step 3: Cross multiply
    107,492.87x = 161,128.14 × 36,391.98
  4. Step 4: Simplify right side
    107,492.87x = 5,863,772,516.08
  5. Step 5: Solve for x
    x = 5,863,772,516.08/107,492.87
  6. Step 6: Final answer
    x = 54,550.34

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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.