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Finding the Fourth Proportional to 117,854.26, 176,548.11 and 103,079.86

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Solution

The fourth proportional to 117,854.26, 176,548.11 and 103,079.86 is: 154,415.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,854.26 : 176,548.11 = 103,079.86 : x
  2. Step 2: Convert to fraction form
    117,854.26/176,548.11 = 103,079.86/x
  3. Step 3: Cross multiply
    117,854.26x = 176,548.11 × 103,079.86
  4. Step 4: Simplify right side
    117,854.26x = 18,198,554,462.06
  5. Step 5: Solve for x
    x = 18,198,554,462.06/117,854.26
  6. Step 6: Final answer
    x = 154,415.75

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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.