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Finding the Fourth Proportional to 310,792.73, 428,931.92 and 174,832.41

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Solution

The fourth proportional to 310,792.73, 428,931.92 and 174,832.41 is: 241,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,792.73 : 428,931.92 = 174,832.41 : x
  2. Step 2: Convert to fraction form
    310,792.73/428,931.92 = 174,832.41/x
  3. Step 3: Cross multiply
    310,792.73x = 428,931.92 × 174,832.41
  4. Step 4: Simplify right side
    310,792.73x = 74,991,200,425.37
  5. Step 5: Solve for x
    x = 74,991,200,425.37/310,792.73
  6. Step 6: Final answer
    x = 241,290.07

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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.