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Finding the Fourth Proportional to 172,424.63, 258,643.73 and 60,116.31

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Solution

The fourth proportional to 172,424.63, 258,643.73 and 60,116.31 is: 90,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,424.63 : 258,643.73 = 60,116.31 : x
  2. Step 2: Convert to fraction form
    172,424.63/258,643.73 = 60,116.31/x
  3. Step 3: Cross multiply
    172,424.63x = 258,643.73 × 60,116.31
  4. Step 4: Simplify right side
    172,424.63x = 15,548,706,802.53
  5. Step 5: Solve for x
    x = 15,548,706,802.53/172,424.63
  6. Step 6: Final answer
    x = 90,176.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.