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Finding the Fourth Proportional to 117,878.83, 176,818.39 and 29,130.98

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Solution

The fourth proportional to 117,878.83, 176,818.39 and 29,130.98 is: 43,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,878.83 : 176,818.39 = 29,130.98 : x
  2. Step 2: Convert to fraction form
    117,878.83/176,818.39 = 29,130.98/x
  3. Step 3: Cross multiply
    117,878.83x = 176,818.39 × 29,130.98
  4. Step 4: Simplify right side
    117,878.83x = 5,150,892,982.72
  5. Step 5: Solve for x
    x = 5,150,892,982.72/117,878.83
  6. Step 6: Final answer
    x = 43,696.51

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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.