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Finding the Fourth Proportional to 71,053.55, 106,541.13 and 28,922.81

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Solution

The fourth proportional to 71,053.55, 106,541.13 and 28,922.81 is: 43,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,053.55 : 106,541.13 = 28,922.81 : x
  2. Step 2: Convert to fraction form
    71,053.55/106,541.13 = 28,922.81/x
  3. Step 3: Cross multiply
    71,053.55x = 106,541.13 × 28,922.81
  4. Step 4: Simplify right side
    71,053.55x = 3,081,469,126.53
  5. Step 5: Solve for x
    x = 3,081,469,126.53/71,053.55
  6. Step 6: Final answer
    x = 43,368.27

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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.