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Finding the Fourth Proportional to 239,558.40, 359,399.14 and 89,800.72

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Solution

The fourth proportional to 239,558.40, 359,399.14 and 89,800.72 is: 134,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,558.40 : 359,399.14 = 89,800.72 : x
  2. Step 2: Convert to fraction form
    239,558.40/359,399.14 = 89,800.72/x
  3. Step 3: Cross multiply
    239,558.40x = 359,399.14 × 89,800.72
  4. Step 4: Simplify right side
    239,558.40x = 32,274,301,539.38
  5. Step 5: Solve for x
    x = 32,274,301,539.38/239,558.40
  6. Step 6: Final answer
    x = 134,724.15

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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.