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Finding the Fourth Proportional to 205,016.60, 307,524.90 and 116,443.10

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Solution

The fourth proportional to 205,016.60, 307,524.90 and 116,443.10 is: 174,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,016.60 : 307,524.90 = 116,443.10 : x
  2. Step 2: Convert to fraction form
    205,016.60/307,524.90 = 116,443.10/x
  3. Step 3: Cross multiply
    205,016.60x = 307,524.90 × 116,443.10
  4. Step 4: Simplify right side
    205,016.60x = 35,809,152,683.19
  5. Step 5: Solve for x
    x = 35,809,152,683.19/205,016.60
  6. Step 6: Final answer
    x = 174,664.65

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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.