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Finding the Fourth Proportional to 124,596.90, 171,943.73 and 68,008.28

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Solution

The fourth proportional to 124,596.90, 171,943.73 and 68,008.28 is: 93,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,596.90 : 171,943.73 = 68,008.28 : x
  2. Step 2: Convert to fraction form
    124,596.90/171,943.73 = 68,008.28/x
  3. Step 3: Cross multiply
    124,596.90x = 171,943.73 × 68,008.28
  4. Step 4: Simplify right side
    124,596.90x = 11,693,596,134.32
  5. Step 5: Solve for x
    x = 11,693,596,134.32/124,596.90
  6. Step 6: Final answer
    x = 93,851.42

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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.