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Finding the Fourth Proportional to 99,574.56, 149,383.71 and 55,265.94

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Solution

The fourth proportional to 99,574.56, 149,383.71 and 55,265.94 is: 82,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,574.56 : 149,383.71 = 55,265.94 : x
  2. Step 2: Convert to fraction form
    99,574.56/149,383.71 = 55,265.94/x
  3. Step 3: Cross multiply
    99,574.56x = 149,383.71 × 55,265.94
  4. Step 4: Simplify right side
    99,574.56x = 8,255,831,153.84
  5. Step 5: Solve for x
    x = 8,255,831,153.84/99,574.56
  6. Step 6: Final answer
    x = 82,911.05

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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.