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Finding the Fourth Proportional to 116,571.80, 174,857.70 and 107,629.40

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Solution

The fourth proportional to 116,571.80, 174,857.70 and 107,629.40 is: 161,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,571.80 : 174,857.70 = 107,629.40 : x
  2. Step 2: Convert to fraction form
    116,571.80/174,857.70 = 107,629.40/x
  3. Step 3: Cross multiply
    116,571.80x = 174,857.70 × 107,629.40
  4. Step 4: Simplify right side
    116,571.80x = 18,819,829,336.38
  5. Step 5: Solve for x
    x = 18,819,829,336.38/116,571.80
  6. Step 6: Final answer
    x = 161,444.10

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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.