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Finding the Fourth Proportional to 178,986.80, 268,461.72 and 60,655.08

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Solution

The fourth proportional to 178,986.80, 268,461.72 and 60,655.08 is: 90,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,986.80 : 268,461.72 = 60,655.08 : x
  2. Step 2: Convert to fraction form
    178,986.80/268,461.72 = 60,655.08/x
  3. Step 3: Cross multiply
    178,986.80x = 268,461.72 × 60,655.08
  4. Step 4: Simplify right side
    178,986.80x = 16,283,567,103.54
  5. Step 5: Solve for x
    x = 16,283,567,103.54/178,986.80
  6. Step 6: Final answer
    x = 90,976.36

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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.