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Finding the Fourth Proportional to 355,896.80, 533,715.60 and 119,247.20

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Solution

The fourth proportional to 355,896.80, 533,715.60 and 119,247.20 is: 178,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,896.80 : 533,715.60 = 119,247.20 : x
  2. Step 2: Convert to fraction form
    355,896.80/533,715.60 = 119,247.20/x
  3. Step 3: Cross multiply
    355,896.80x = 533,715.60 × 119,247.20
  4. Step 4: Simplify right side
    355,896.80x = 63,644,090,896.32
  5. Step 5: Solve for x
    x = 63,644,090,896.32/355,896.80
  6. Step 6: Final answer
    x = 178,827.38

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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.