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Finding the Fourth Proportional to 355,816.60, 533,724.90 and 119,134.60

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Solution

The fourth proportional to 355,816.60, 533,724.90 and 119,134.60 is: 178,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,816.60 : 533,724.90 = 119,134.60 : x
  2. Step 2: Convert to fraction form
    355,816.60/533,724.90 = 119,134.60/x
  3. Step 3: Cross multiply
    355,816.60x = 533,724.90 × 119,134.60
  4. Step 4: Simplify right side
    355,816.60x = 63,585,102,471.54
  5. Step 5: Solve for x
    x = 63,585,102,471.54/355,816.60
  6. Step 6: Final answer
    x = 178,701.90

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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.