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Finding the Fourth Proportional to 127,577.78, 176,078.92 and 73,895.48

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Solution

The fourth proportional to 127,577.78, 176,078.92 and 73,895.48 is: 101,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,577.78 : 176,078.92 = 73,895.48 : x
  2. Step 2: Convert to fraction form
    127,577.78/176,078.92 = 73,895.48/x
  3. Step 3: Cross multiply
    127,577.78x = 176,078.92 × 73,895.48
  4. Step 4: Simplify right side
    127,577.78x = 13,011,436,311.28
  5. Step 5: Solve for x
    x = 13,011,436,311.28/127,577.78
  6. Step 6: Final answer
    x = 101,988.26

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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.