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Finding the Fourth Proportional to 117,641.48, 176,461.80 and 51,072.92

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Solution

The fourth proportional to 117,641.48, 176,461.80 and 51,072.92 is: 76,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,641.48 : 176,461.80 = 51,072.92 : x
  2. Step 2: Convert to fraction form
    117,641.48/176,461.80 = 51,072.92/x
  3. Step 3: Cross multiply
    117,641.48x = 176,461.80 × 51,072.92
  4. Step 4: Simplify right side
    117,641.48x = 9,012,419,394.46
  5. Step 5: Solve for x
    x = 9,012,419,394.46/117,641.48
  6. Step 6: Final answer
    x = 76,609.20

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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.