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Finding the Fourth Proportional to 317,969.61, 438,822.53 and 182,046.34

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Solution

The fourth proportional to 317,969.61, 438,822.53 and 182,046.34 is: 251,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,969.61 : 438,822.53 = 182,046.34 : x
  2. Step 2: Convert to fraction form
    317,969.61/438,822.53 = 182,046.34/x
  3. Step 3: Cross multiply
    317,969.61x = 438,822.53 × 182,046.34
  4. Step 4: Simplify right side
    317,969.61x = 79,886,035,496.04
  5. Step 5: Solve for x
    x = 79,886,035,496.04/317,969.61
  6. Step 6: Final answer
    x = 251,237.96

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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.