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Finding the Fourth Proportional to 116,039.20, 162,804.80 and 116,039.20

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Solution

The fourth proportional to 116,039.20, 162,804.80 and 116,039.20 is: 162,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,039.20 : 162,804.80 = 116,039.20 : x
  2. Step 2: Convert to fraction form
    116,039.20/162,804.80 = 116,039.20/x
  3. Step 3: Cross multiply
    116,039.20x = 162,804.80 × 116,039.20
  4. Step 4: Simplify right side
    116,039.20x = 18,891,738,748.16
  5. Step 5: Solve for x
    x = 18,891,738,748.16/116,039.20
  6. Step 6: Final answer
    x = 162,804.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.