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Finding the Fourth Proportional to 117,805.78, 176,765.37 and 58,646.62

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Solution

The fourth proportional to 117,805.78, 176,765.37 and 58,646.62 is: 87,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,805.78 : 176,765.37 = 58,646.62 : x
  2. Step 2: Convert to fraction form
    117,805.78/176,765.37 = 58,646.62/x
  3. Step 3: Cross multiply
    117,805.78x = 176,765.37 × 58,646.62
  4. Step 4: Simplify right side
    117,805.78x = 10,366,691,483.55
  5. Step 5: Solve for x
    x = 10,366,691,483.55/117,805.78
  6. Step 6: Final answer
    x = 87,998.16

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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.