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Finding the Fourth Proportional to 355,665.82, 533,642.92 and 155,880.94

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Solution

The fourth proportional to 355,665.82, 533,642.92 and 155,880.94 is: 233,884.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,665.82 : 533,642.92 = 155,880.94 : x
  2. Step 2: Convert to fraction form
    355,665.82/533,642.92 = 155,880.94/x
  3. Step 3: Cross multiply
    355,665.82x = 533,642.92 × 155,880.94
  4. Step 4: Simplify right side
    355,665.82x = 83,184,759,993.94
  5. Step 5: Solve for x
    x = 83,184,759,993.94/355,665.82
  6. Step 6: Final answer
    x = 233,884.61

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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.