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Finding the Fourth Proportional to 104,761.48, 144,601.36 and 68,468.21

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Solution

The fourth proportional to 104,761.48, 144,601.36 and 68,468.21 is: 94,506.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,761.48 : 144,601.36 = 68,468.21 : x
  2. Step 2: Convert to fraction form
    104,761.48/144,601.36 = 68,468.21/x
  3. Step 3: Cross multiply
    104,761.48x = 144,601.36 × 68,468.21
  4. Step 4: Simplify right side
    104,761.48x = 9,900,596,473.10
  5. Step 5: Solve for x
    x = 9,900,596,473.10/104,761.48
  6. Step 6: Final answer
    x = 94,506.08

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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.