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Finding the Fourth Proportional to 572,145.21, 858,179.73 and 235,098.54

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Solution

The fourth proportional to 572,145.21, 858,179.73 and 235,098.54 is: 352,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,145.21 : 858,179.73 = 235,098.54 : x
  2. Step 2: Convert to fraction form
    572,145.21/858,179.73 = 235,098.54/x
  3. Step 3: Cross multiply
    572,145.21x = 858,179.73 × 235,098.54
  4. Step 4: Simplify right side
    572,145.21x = 201,756,801,580.59
  5. Step 5: Solve for x
    x = 201,756,801,580.59/572,145.21
  6. Step 6: Final answer
    x = 352,632.16

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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.