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Finding the Fourth Proportional to 393,168.06, 589,654.58 and 168,503.01

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Solution

The fourth proportional to 393,168.06, 589,654.58 and 168,503.01 is: 252,712.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,168.06 : 589,654.58 = 168,503.01 : x
  2. Step 2: Convert to fraction form
    393,168.06/589,654.58 = 168,503.01/x
  3. Step 3: Cross multiply
    393,168.06x = 589,654.58 × 168,503.01
  4. Step 4: Simplify right side
    393,168.06x = 99,358,570,747.77
  5. Step 5: Solve for x
    x = 99,358,570,747.77/393,168.06
  6. Step 6: Final answer
    x = 252,712.73

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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.