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Finding the Fourth Proportional to 76,695.84, 114,890.64 and 60,927.60

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Solution

The fourth proportional to 76,695.84, 114,890.64 and 60,927.60 is: 91,269.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,695.84 : 114,890.64 = 60,927.60 : x
  2. Step 2: Convert to fraction form
    76,695.84/114,890.64 = 60,927.60/x
  3. Step 3: Cross multiply
    76,695.84x = 114,890.64 × 60,927.60
  4. Step 4: Simplify right side
    76,695.84x = 7,000,010,957.66
  5. Step 5: Solve for x
    x = 7,000,010,957.66/76,695.84
  6. Step 6: Final answer
    x = 91,269.76

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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.