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Finding the Fourth Proportional to 117,630.93, 176,347.18 and 51,020.88

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Solution

The fourth proportional to 117,630.93, 176,347.18 and 51,020.88 is: 76,488.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,630.93 : 176,347.18 = 51,020.88 : x
  2. Step 2: Convert to fraction form
    117,630.93/176,347.18 = 51,020.88/x
  3. Step 3: Cross multiply
    117,630.93x = 176,347.18 × 51,020.88
  4. Step 4: Simplify right side
    117,630.93x = 8,997,388,309.12
  5. Step 5: Solve for x
    x = 8,997,388,309.12/117,630.93
  6. Step 6: Final answer
    x = 76,488.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.