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Finding the Fourth Proportional to 317,567.68, 438,278.26 and 181,614.28

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Solution

The fourth proportional to 317,567.68, 438,278.26 and 181,614.28 is: 250,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,567.68 : 438,278.26 = 181,614.28 : x
  2. Step 2: Convert to fraction form
    317,567.68/438,278.26 = 181,614.28/x
  3. Step 3: Cross multiply
    317,567.68x = 438,278.26 × 181,614.28
  4. Step 4: Simplify right side
    317,567.68x = 79,597,590,629.55
  5. Step 5: Solve for x
    x = 79,597,590,629.55/317,567.68
  6. Step 6: Final answer
    x = 250,647.64

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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.