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Finding the Fourth Proportional to 358,744.94, 538,142.01 and 118,858.38

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Solution

The fourth proportional to 358,744.94, 538,142.01 and 118,858.38 is: 178,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,744.94 : 538,142.01 = 118,858.38 : x
  2. Step 2: Convert to fraction form
    358,744.94/538,142.01 = 118,858.38/x
  3. Step 3: Cross multiply
    358,744.94x = 538,142.01 × 118,858.38
  4. Step 4: Simplify right side
    358,744.94x = 63,962,687,518.54
  5. Step 5: Solve for x
    x = 63,962,687,518.54/358,744.94
  6. Step 6: Final answer
    x = 178,295.72

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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.