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Finding the Fourth Proportional to 117,638.76, 176,458.74 and 28,892.30

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Solution

The fourth proportional to 117,638.76, 176,458.74 and 28,892.30 is: 43,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,638.76 : 176,458.74 = 28,892.30 : x
  2. Step 2: Convert to fraction form
    117,638.76/176,458.74 = 28,892.30/x
  3. Step 3: Cross multiply
    117,638.76x = 176,458.74 × 28,892.30
  4. Step 4: Simplify right side
    117,638.76x = 5,098,297,863.06
  5. Step 5: Solve for x
    x = 5,098,297,863.06/117,638.76
  6. Step 6: Final answer
    x = 43,338.59

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1.5x scale

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.