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Finding the Fourth Proportional to 353,538.55, 530,202.12 and 100,801.54

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Solution

The fourth proportional to 353,538.55, 530,202.12 and 100,801.54 is: 151,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,538.55 : 530,202.12 = 100,801.54 : x
  2. Step 2: Convert to fraction form
    353,538.55/530,202.12 = 100,801.54/x
  3. Step 3: Cross multiply
    353,538.55x = 530,202.12 × 100,801.54
  4. Step 4: Simplify right side
    353,538.55x = 53,445,190,207.26
  5. Step 5: Solve for x
    x = 53,445,190,207.26/353,538.55
  6. Step 6: Final answer
    x = 151,172.17

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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.