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Finding the Fourth Proportional to 117,576.61, 162,256.91 and 63,862.68

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Solution

The fourth proportional to 117,576.61, 162,256.91 and 63,862.68 is: 88,131.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,576.61 : 162,256.91 = 63,862.68 : x
  2. Step 2: Convert to fraction form
    117,576.61/162,256.91 = 63,862.68/x
  3. Step 3: Cross multiply
    117,576.61x = 162,256.91 × 63,862.68
  4. Step 4: Simplify right side
    117,576.61x = 10,362,160,469.49
  5. Step 5: Solve for x
    x = 10,362,160,469.49/117,576.61
  6. Step 6: Final answer
    x = 88,131.14

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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.