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Finding the Fourth Proportional to 104,287.94, 143,908.50 and 58,959.63

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Solution

The fourth proportional to 104,287.94, 143,908.50 and 58,959.63 is: 81,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,287.94 : 143,908.50 = 58,959.63 : x
  2. Step 2: Convert to fraction form
    104,287.94/143,908.50 = 58,959.63/x
  3. Step 3: Cross multiply
    104,287.94x = 143,908.50 × 58,959.63
  4. Step 4: Simplify right side
    104,287.94x = 8,484,791,803.31
  5. Step 5: Solve for x
    x = 8,484,791,803.31/104,287.94
  6. Step 6: Final answer
    x = 81,359.28

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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.