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Finding the Fourth Proportional to 117,697.88, 176,479.50 and 38,790.92

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Solution

The fourth proportional to 117,697.88, 176,479.50 and 38,790.92 is: 58,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,697.88 : 176,479.50 = 38,790.92 : x
  2. Step 2: Convert to fraction form
    117,697.88/176,479.50 = 38,790.92/x
  3. Step 3: Cross multiply
    117,697.88x = 176,479.50 × 38,790.92
  4. Step 4: Simplify right side
    117,697.88x = 6,845,802,166.14
  5. Step 5: Solve for x
    x = 6,845,802,166.14/117,697.88
  6. Step 6: Final answer
    x = 58,164.19

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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.