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Finding the Fourth Proportional to 117,647.28, 176,492.79 and 38,764.62

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Solution

The fourth proportional to 117,647.28, 176,492.79 and 38,764.62 is: 58,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,647.28 : 176,492.79 = 38,764.62 : x
  2. Step 2: Convert to fraction form
    117,647.28/176,492.79 = 38,764.62/x
  3. Step 3: Cross multiply
    117,647.28x = 176,492.79 × 38,764.62
  4. Step 4: Simplify right side
    117,647.28x = 6,841,675,937.09
  5. Step 5: Solve for x
    x = 6,841,675,937.09/117,647.28
  6. Step 6: Final answer
    x = 58,154.14

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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.