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Finding the Fourth Proportional to 239,705.34, 359,464.54 and 89,863.95

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Solution

The fourth proportional to 239,705.34, 359,464.54 and 89,863.95 is: 134,760.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,705.34 : 359,464.54 = 89,863.95 : x
  2. Step 2: Convert to fraction form
    239,705.34/359,464.54 = 89,863.95/x
  3. Step 3: Cross multiply
    239,705.34x = 359,464.54 × 89,863.95
  4. Step 4: Simplify right side
    239,705.34x = 32,302,903,449.33
  5. Step 5: Solve for x
    x = 32,302,903,449.33/239,705.34
  6. Step 6: Final answer
    x = 134,760.88

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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.