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Finding the Fourth Proportional to 76,703.60, 114,947.40 and 60,935.60

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Solution

The fourth proportional to 76,703.60, 114,947.40 and 60,935.60 is: 91,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,703.60 : 114,947.40 = 60,935.60 : x
  2. Step 2: Convert to fraction form
    76,703.60/114,947.40 = 60,935.60/x
  3. Step 3: Cross multiply
    76,703.60x = 114,947.40 × 60,935.60
  4. Step 4: Simplify right side
    76,703.60x = 7,004,388,787.44
  5. Step 5: Solve for x
    x = 7,004,388,787.44/76,703.60
  6. Step 6: Final answer
    x = 91,317.60

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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.