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Finding the Fourth Proportional to 317,869.94, 438,668.25 and 174,639.26

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Solution

The fourth proportional to 317,869.94, 438,668.25 and 174,639.26 is: 241,006.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,869.94 : 438,668.25 = 174,639.26 : x
  2. Step 2: Convert to fraction form
    317,869.94/438,668.25 = 174,639.26/x
  3. Step 3: Cross multiply
    317,869.94x = 438,668.25 × 174,639.26
  4. Step 4: Simplify right side
    317,869.94x = 76,608,698,565.50
  5. Step 5: Solve for x
    x = 76,608,698,565.50/317,869.94
  6. Step 6: Final answer
    x = 241,006.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.