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Finding the Fourth Proportional to 104,294.52, 143,885.73 and 68,038.59

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Solution

The fourth proportional to 104,294.52, 143,885.73 and 68,038.59 is: 93,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,294.52 : 143,885.73 = 68,038.59 : x
  2. Step 2: Convert to fraction form
    104,294.52/143,885.73 = 68,038.59/x
  3. Step 3: Cross multiply
    104,294.52x = 143,885.73 × 68,038.59
  4. Step 4: Simplify right side
    104,294.52x = 9,789,781,130.70
  5. Step 5: Solve for x
    x = 9,789,781,130.70/104,294.52
  6. Step 6: Final answer
    x = 93,866.69

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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.