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Finding the Fourth Proportional to 117,516.63, 162,172.95 and 63,801.65

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Solution

The fourth proportional to 117,516.63, 162,172.95 and 63,801.65 is: 88,046.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,516.63 : 162,172.95 = 63,801.65 : x
  2. Step 2: Convert to fraction form
    117,516.63/162,172.95 = 63,801.65/x
  3. Step 3: Cross multiply
    117,516.63x = 162,172.95 × 63,801.65
  4. Step 4: Simplify right side
    117,516.63x = 10,346,901,795.37
  5. Step 5: Solve for x
    x = 10,346,901,795.37/117,516.63
  6. Step 6: Final answer
    x = 88,046.28

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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.