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Finding the Fourth Proportional to 124,682.76, 172,063.08 and 68,095.44

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Solution

The fourth proportional to 124,682.76, 172,063.08 and 68,095.44 is: 93,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,682.76 : 172,063.08 = 68,095.44 : x
  2. Step 2: Convert to fraction form
    124,682.76/172,063.08 = 68,095.44/x
  3. Step 3: Cross multiply
    124,682.76x = 172,063.08 × 68,095.44
  4. Step 4: Simplify right side
    124,682.76x = 11,716,711,140.36
  5. Step 5: Solve for x
    x = 11,716,711,140.36/124,682.76
  6. Step 6: Final answer
    x = 93,972.18

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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.