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Finding the Fourth Proportional to 251,301.08, 376,410.32 and 117,981.56

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Solution

The fourth proportional to 251,301.08, 376,410.32 and 117,981.56 is: 176,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,301.08 : 376,410.32 = 117,981.56 : x
  2. Step 2: Convert to fraction form
    251,301.08/376,410.32 = 117,981.56/x
  3. Step 3: Cross multiply
    251,301.08x = 376,410.32 × 117,981.56
  4. Step 4: Simplify right side
    251,301.08x = 44,409,476,753.70
  5. Step 5: Solve for x
    x = 44,409,476,753.70/251,301.08
  6. Step 6: Final answer
    x = 176,718.21

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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.