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Finding the Fourth Proportional to 104,283.81, 143,905.88 and 58,958.91

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Solution

The fourth proportional to 104,283.81, 143,905.88 and 58,958.91 is: 81,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,283.81 : 143,905.88 = 58,958.91 : x
  2. Step 2: Convert to fraction form
    104,283.81/143,905.88 = 58,958.91/x
  3. Step 3: Cross multiply
    104,283.81x = 143,905.88 × 58,958.91
  4. Step 4: Simplify right side
    104,283.81x = 8,484,533,974.79
  5. Step 5: Solve for x
    x = 8,484,533,974.79/104,283.81
  6. Step 6: Final answer
    x = 81,360.03

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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.