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Finding the Fourth Proportional to 173,802.80, 260,790.60 and 68,625.20

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Solution

The fourth proportional to 173,802.80, 260,790.60 and 68,625.20 is: 102,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,802.80 : 260,790.60 = 68,625.20 : x
  2. Step 2: Convert to fraction form
    173,802.80/260,790.60 = 68,625.20/x
  3. Step 3: Cross multiply
    173,802.80x = 260,790.60 × 68,625.20
  4. Step 4: Simplify right side
    173,802.80x = 17,896,807,083.12
  5. Step 5: Solve for x
    x = 17,896,807,083.12/173,802.80
  6. Step 6: Final answer
    x = 102,971.91

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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.