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Finding the Fourth Proportional to 239,636.30, 359,505.48 and 71,157.11

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Solution

The fourth proportional to 239,636.30, 359,505.48 and 71,157.11 is: 106,750.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,636.30 : 359,505.48 = 71,157.11 : x
  2. Step 2: Convert to fraction form
    239,636.30/359,505.48 = 71,157.11/x
  3. Step 3: Cross multiply
    239,636.30x = 359,505.48 × 71,157.11
  4. Step 4: Simplify right side
    239,636.30x = 25,581,370,985.96
  5. Step 5: Solve for x
    x = 25,581,370,985.96/239,636.30
  6. Step 6: Final answer
    x = 106,750.82

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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.