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Finding the Fourth Proportional to 356,735.18, 535,158.12 and 120,059.40

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Solution

The fourth proportional to 356,735.18, 535,158.12 and 120,059.40 is: 180,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,735.18 : 535,158.12 = 120,059.40 : x
  2. Step 2: Convert to fraction form
    356,735.18/535,158.12 = 120,059.40/x
  3. Step 3: Cross multiply
    356,735.18x = 535,158.12 × 120,059.40
  4. Step 4: Simplify right side
    356,735.18x = 64,250,762,792.33
  5. Step 5: Solve for x
    x = 64,250,762,792.33/356,735.18
  6. Step 6: Final answer
    x = 180,107.73

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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.