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Finding the Fourth Proportional to 117,919.80, 176,753.28 and 58,627.80

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Solution

The fourth proportional to 117,919.80, 176,753.28 and 58,627.80 is: 87,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,919.80 : 176,753.28 = 58,627.80 : x
  2. Step 2: Convert to fraction form
    117,919.80/176,753.28 = 58,627.80/x
  3. Step 3: Cross multiply
    117,919.80x = 176,753.28 × 58,627.80
  4. Step 4: Simplify right side
    117,919.80x = 10,362,655,949.18
  5. Step 5: Solve for x
    x = 10,362,655,949.18/117,919.80
  6. Step 6: Final answer
    x = 87,878.85

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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.