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Finding the Fourth Proportional to 127,855.66, 176,516.49 and 113,669.32

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Solution

The fourth proportional to 127,855.66, 176,516.49 and 113,669.32 is: 156,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,855.66 : 176,516.49 = 113,669.32 : x
  2. Step 2: Convert to fraction form
    127,855.66/176,516.49 = 113,669.32/x
  3. Step 3: Cross multiply
    127,855.66x = 176,516.49 × 113,669.32
  4. Step 4: Simplify right side
    127,855.66x = 20,064,509,387.09
  5. Step 5: Solve for x
    x = 20,064,509,387.09/127,855.66
  6. Step 6: Final answer
    x = 156,930.94

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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.