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Finding the Fourth Proportional to 318,109.44, 438,996.48 and 174,875.52

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Solution

The fourth proportional to 318,109.44, 438,996.48 and 174,875.52 is: 241,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,109.44 : 438,996.48 = 174,875.52 : x
  2. Step 2: Convert to fraction form
    318,109.44/438,996.48 = 174,875.52/x
  3. Step 3: Cross multiply
    318,109.44x = 438,996.48 × 174,875.52
  4. Step 4: Simplify right side
    318,109.44x = 76,769,737,718.17
  5. Step 5: Solve for x
    x = 76,769,737,718.17/318,109.44
  6. Step 6: Final answer
    x = 241,331.22

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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.