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Finding the Fourth Proportional to 117,921.40, 176,882.10 and 94,593.40

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Solution

The fourth proportional to 117,921.40, 176,882.10 and 94,593.40 is: 141,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,921.40 : 176,882.10 = 94,593.40 : x
  2. Step 2: Convert to fraction form
    117,921.40/176,882.10 = 94,593.40/x
  3. Step 3: Cross multiply
    117,921.40x = 176,882.10 × 94,593.40
  4. Step 4: Simplify right side
    117,921.40x = 16,731,879,238.14
  5. Step 5: Solve for x
    x = 16,731,879,238.14/117,921.40
  6. Step 6: Final answer
    x = 141,890.10

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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.