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Finding the Fourth Proportional to 220,129.92, 303,776.64 and 119,528.64

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Solution

The fourth proportional to 220,129.92, 303,776.64 and 119,528.64 is: 164,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,129.92 : 303,776.64 = 119,528.64 : x
  2. Step 2: Convert to fraction form
    220,129.92/303,776.64 = 119,528.64/x
  3. Step 3: Cross multiply
    220,129.92x = 303,776.64 × 119,528.64
  4. Step 4: Simplify right side
    220,129.92x = 36,310,008,642.97
  5. Step 5: Solve for x
    x = 36,310,008,642.97/220,129.92
  6. Step 6: Final answer
    x = 164,948.08

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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.