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Finding the Fourth Proportional to 354,601.20, 531,950.40 and 117,919.20

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Solution

The fourth proportional to 354,601.20, 531,950.40 and 117,919.20 is: 176,894.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,601.20 : 531,950.40 = 117,919.20 : x
  2. Step 2: Convert to fraction form
    354,601.20/531,950.40 = 117,919.20/x
  3. Step 3: Cross multiply
    354,601.20x = 531,950.40 × 117,919.20
  4. Step 4: Simplify right side
    354,601.20x = 62,727,165,607.68
  5. Step 5: Solve for x
    x = 62,727,165,607.68/354,601.20
  6. Step 6: Final answer
    x = 176,894.96

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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.