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Finding the Fourth Proportional to 317,993.76, 438,822.54 and 174,753.90

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Solution

The fourth proportional to 317,993.76, 438,822.54 and 174,753.90 is: 241,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,993.76 : 438,822.54 = 174,753.90 : x
  2. Step 2: Convert to fraction form
    317,993.76/438,822.54 = 174,753.90/x
  3. Step 3: Cross multiply
    317,993.76x = 438,822.54 × 174,753.90
  4. Step 4: Simplify right side
    317,993.76x = 76,685,950,272.91
  5. Step 5: Solve for x
    x = 76,685,950,272.91/317,993.76
  6. Step 6: Final answer
    x = 241,155.52

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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.