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Finding the Fourth Proportional to 117,896.40, 176,783.80 and 34,779.60

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Solution

The fourth proportional to 117,896.40, 176,783.80 and 34,779.60 is: 52,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,896.40 : 176,783.80 = 34,779.60 : x
  2. Step 2: Convert to fraction form
    117,896.40/176,783.80 = 34,779.60/x
  3. Step 3: Cross multiply
    117,896.40x = 176,783.80 × 34,779.60
  4. Step 4: Simplify right side
    117,896.40x = 6,148,469,850.48
  5. Step 5: Solve for x
    x = 6,148,469,850.48/117,896.40
  6. Step 6: Final answer
    x = 52,151.46

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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.