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Finding the Fourth Proportional to 318,006.95, 438,849.92 and 174,763.92

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Solution

The fourth proportional to 318,006.95, 438,849.92 and 174,763.92 is: 241,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,006.95 : 438,849.92 = 174,763.92 : x
  2. Step 2: Convert to fraction form
    318,006.95/438,849.92 = 174,763.92/x
  3. Step 3: Cross multiply
    318,006.95x = 438,849.92 × 174,763.92
  4. Step 4: Simplify right side
    318,006.95x = 76,695,132,747.80
  5. Step 5: Solve for x
    x = 76,695,132,747.80/318,006.95
  6. Step 6: Final answer
    x = 241,174.39

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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.