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Finding the Fourth Proportional to 64,687.54, 89,239.31 and 46,754.14

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Solution

The fourth proportional to 64,687.54, 89,239.31 and 46,754.14 is: 64,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,687.54 : 89,239.31 = 46,754.14 : x
  2. Step 2: Convert to fraction form
    64,687.54/89,239.31 = 46,754.14/x
  3. Step 3: Cross multiply
    64,687.54x = 89,239.31 × 46,754.14
  4. Step 4: Simplify right side
    64,687.54x = 4,172,306,959.47
  5. Step 5: Solve for x
    x = 4,172,306,959.47/64,687.54
  6. Step 6: Final answer
    x = 64,499.39

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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.