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Finding the Fourth Proportional to 159,316.80, 238,629.60 and 141,806.40

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Solution

The fourth proportional to 159,316.80, 238,629.60 and 141,806.40 is: 212,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,316.80 : 238,629.60 = 141,806.40 : x
  2. Step 2: Convert to fraction form
    159,316.80/238,629.60 = 141,806.40/x
  3. Step 3: Cross multiply
    159,316.80x = 238,629.60 × 141,806.40
  4. Step 4: Simplify right side
    159,316.80x = 33,839,204,509.44
  5. Step 5: Solve for x
    x = 33,839,204,509.44/159,316.80
  6. Step 6: Final answer
    x = 212,401.98

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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.