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Finding the Fourth Proportional to 117,919.40, 176,879.10 and 94,591.40

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Solution

The fourth proportional to 117,919.40, 176,879.10 and 94,591.40 is: 141,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,919.40 : 176,879.10 = 94,591.40 : x
  2. Step 2: Convert to fraction form
    117,919.40/176,879.10 = 94,591.40/x
  3. Step 3: Cross multiply
    117,919.40x = 176,879.10 × 94,591.40
  4. Step 4: Simplify right side
    117,919.40x = 16,731,241,699.74
  5. Step 5: Solve for x
    x = 16,731,241,699.74/117,919.40
  6. Step 6: Final answer
    x = 141,887.10

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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.