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Finding the Fourth Proportional to 220,170.96, 303,835.94 and 124,696.11

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Solution

The fourth proportional to 220,170.96, 303,835.94 and 124,696.11 is: 172,080.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,170.96 : 303,835.94 = 124,696.11 : x
  2. Step 2: Convert to fraction form
    220,170.96/303,835.94 = 124,696.11/x
  3. Step 3: Cross multiply
    220,170.96x = 303,835.94 × 124,696.11
  4. Step 4: Simplify right side
    220,170.96x = 37,887,159,172.71
  5. Step 5: Solve for x
    x = 37,887,159,172.71/220,170.96
  6. Step 6: Final answer
    x = 172,080.64

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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.