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Finding the Fourth Proportional to 355,708.80, 533,433.60 and 119,059.20

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Solution

The fourth proportional to 355,708.80, 533,433.60 and 119,059.20 is: 178,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,708.80 : 533,433.60 = 119,059.20 : x
  2. Step 2: Convert to fraction form
    355,708.80/533,433.60 = 119,059.20/x
  3. Step 3: Cross multiply
    355,708.80x = 533,433.60 × 119,059.20
  4. Step 4: Simplify right side
    355,708.80x = 63,510,177,669.12
  5. Step 5: Solve for x
    x = 63,510,177,669.12/355,708.80
  6. Step 6: Final answer
    x = 178,545.42

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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.