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Finding the Fourth Proportional to 358,474.60, 538,100.70 and 201,010.60

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Solution

The fourth proportional to 358,474.60, 538,100.70 and 201,010.60 is: 301,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,474.60 : 538,100.70 = 201,010.60 : x
  2. Step 2: Convert to fraction form
    358,474.60/538,100.70 = 201,010.60/x
  3. Step 3: Cross multiply
    358,474.60x = 538,100.70 × 201,010.60
  4. Step 4: Simplify right side
    358,474.60x = 108,163,944,567.42
  5. Step 5: Solve for x
    x = 108,163,944,567.42/358,474.60
  6. Step 6: Final answer
    x = 301,733.92

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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.