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Finding the Fourth Proportional to 76,959.98, 115,439.23 and 41,437.90

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Solution

The fourth proportional to 76,959.98, 115,439.23 and 41,437.90 is: 62,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,959.98 : 115,439.23 = 41,437.90 : x
  2. Step 2: Convert to fraction form
    76,959.98/115,439.23 = 41,437.90/x
  3. Step 3: Cross multiply
    76,959.98x = 115,439.23 × 41,437.90
  4. Step 4: Simplify right side
    76,959.98x = 4,783,559,268.82
  5. Step 5: Solve for x
    x = 4,783,559,268.82/76,959.98
  6. Step 6: Final answer
    x = 62,156.45

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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.