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Finding the Fourth Proportional to 89,636.32, 134,460.64 and 29,664.68

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Solution

The fourth proportional to 89,636.32, 134,460.64 and 29,664.68 is: 44,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,636.32 : 134,460.64 = 29,664.68 : x
  2. Step 2: Convert to fraction form
    89,636.32/134,460.64 = 29,664.68/x
  3. Step 3: Cross multiply
    89,636.32x = 134,460.64 × 29,664.68
  4. Step 4: Simplify right side
    89,636.32x = 3,988,732,120.19
  5. Step 5: Solve for x
    x = 3,988,732,120.19/89,636.32
  6. Step 6: Final answer
    x = 44,499.06

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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.