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Finding the Fourth Proportional to 317,908.53, 438,713.42 and 174,668.22

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Solution

The fourth proportional to 317,908.53, 438,713.42 and 174,668.22 is: 241,041.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,908.53 : 438,713.42 = 174,668.22 : x
  2. Step 2: Convert to fraction form
    317,908.53/438,713.42 = 174,668.22/x
  3. Step 3: Cross multiply
    317,908.53x = 438,713.42 × 174,668.22
  4. Step 4: Simplify right side
    317,908.53x = 76,629,291,288.17
  5. Step 5: Solve for x
    x = 76,629,291,288.17/317,908.53
  6. Step 6: Final answer
    x = 241,041.95

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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.