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Finding the Fourth Proportional to 106,162.08, 146,187.68 and 103,804.80

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Solution

The fourth proportional to 106,162.08, 146,187.68 and 103,804.80 is: 142,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,162.08 : 146,187.68 = 103,804.80 : x
  2. Step 2: Convert to fraction form
    106,162.08/146,187.68 = 103,804.80/x
  3. Step 3: Cross multiply
    106,162.08x = 146,187.68 × 103,804.80
  4. Step 4: Simplify right side
    106,162.08x = 15,174,982,884.86
  5. Step 5: Solve for x
    x = 15,174,982,884.86/106,162.08
  6. Step 6: Final answer
    x = 142,941.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.