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Finding the Fourth Proportional to 178,866.54, 246,733.02 and 111,681.90

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Solution

The fourth proportional to 178,866.54, 246,733.02 and 111,681.90 is: 154,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,866.54 : 246,733.02 = 111,681.90 : x
  2. Step 2: Convert to fraction form
    178,866.54/246,733.02 = 111,681.90/x
  3. Step 3: Cross multiply
    178,866.54x = 246,733.02 × 111,681.90
  4. Step 4: Simplify right side
    178,866.54x = 27,555,612,466.34
  5. Step 5: Solve for x
    x = 27,555,612,466.34/178,866.54
  6. Step 6: Final answer
    x = 154,056.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.