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Finding the Fourth Proportional to 127,563.29, 176,058.91 and 73,880.94

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Solution

The fourth proportional to 127,563.29, 176,058.91 and 73,880.94 is: 101,968.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,563.29 : 176,058.91 = 73,880.94 : x
  2. Step 2: Convert to fraction form
    127,563.29/176,058.91 = 73,880.94/x
  3. Step 3: Cross multiply
    127,563.29x = 176,058.91 × 73,880.94
  4. Step 4: Simplify right side
    127,563.29x = 13,007,397,766.18
  5. Step 5: Solve for x
    x = 13,007,397,766.18/127,563.29
  6. Step 6: Final answer
    x = 101,968.19

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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.