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Finding the Fourth Proportional to 117,536.68, 176,331.12 and 38,647.72

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Solution

The fourth proportional to 117,536.68, 176,331.12 and 38,647.72 is: 57,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,536.68 : 176,331.12 = 38,647.72 : x
  2. Step 2: Convert to fraction form
    117,536.68/176,331.12 = 38,647.72/x
  3. Step 3: Cross multiply
    117,536.68x = 176,331.12 × 38,647.72
  4. Step 4: Simplify right side
    117,536.68x = 6,814,795,753.05
  5. Step 5: Solve for x
    x = 6,814,795,753.05/117,536.68
  6. Step 6: Final answer
    x = 57,980.16

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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.