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Finding the Fourth Proportional to 125,167.86, 186,635.22 and 111,258.54

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Solution

The fourth proportional to 125,167.86, 186,635.22 and 111,258.54 is: 165,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,167.86 : 186,635.22 = 111,258.54 : x
  2. Step 2: Convert to fraction form
    125,167.86/186,635.22 = 111,258.54/x
  3. Step 3: Cross multiply
    125,167.86x = 186,635.22 × 111,258.54
  4. Step 4: Simplify right side
    125,167.86x = 20,764,762,089.78
  5. Step 5: Solve for x
    x = 20,764,762,089.78/125,167.86
  6. Step 6: Final answer
    x = 165,895.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.