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Finding the Fourth Proportional to 220,503.28, 304,419.20 and 168,722.76

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Solution

The fourth proportional to 220,503.28, 304,419.20 and 168,722.76 is: 232,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,503.28 : 304,419.20 = 168,722.76 : x
  2. Step 2: Convert to fraction form
    220,503.28/304,419.20 = 168,722.76/x
  3. Step 3: Cross multiply
    220,503.28x = 304,419.20 × 168,722.76
  4. Step 4: Simplify right side
    220,503.28x = 51,362,447,620.99
  5. Step 5: Solve for x
    x = 51,362,447,620.99/220,503.28
  6. Step 6: Final answer
    x = 232,932.81

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Double scale
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1.5x scale

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.