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Finding the Fourth Proportional to 159,322.60, 239,156.70 and 89,338.60

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Solution

The fourth proportional to 159,322.60, 239,156.70 and 89,338.60 is: 134,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,322.60 : 239,156.70 = 89,338.60 : x
  2. Step 2: Convert to fraction form
    159,322.60/239,156.70 = 89,338.60/x
  3. Step 3: Cross multiply
    159,322.60x = 239,156.70 × 89,338.60
  4. Step 4: Simplify right side
    159,322.60x = 21,365,924,758.62
  5. Step 5: Solve for x
    x = 21,365,924,758.62/159,322.60
  6. Step 6: Final answer
    x = 134,104.80

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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.