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Finding the Fourth Proportional to 117,591.17, 176,390.10 and 28,844.60

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Solution

The fourth proportional to 117,591.17, 176,390.10 and 28,844.60 is: 43,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,591.17 : 176,390.10 = 28,844.60 : x
  2. Step 2: Convert to fraction form
    117,591.17/176,390.10 = 28,844.60/x
  3. Step 3: Cross multiply
    117,591.17x = 176,390.10 × 28,844.60
  4. Step 4: Simplify right side
    117,591.17x = 5,087,901,878.46
  5. Step 5: Solve for x
    x = 5,087,901,878.46/117,591.17
  6. Step 6: Final answer
    x = 43,267.72

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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.