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Finding the Fourth Proportional to 99,957, 149,818.86 and 55,562.52

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Solution

The fourth proportional to 99,957, 149,818.86 and 55,562.52 is: 83,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,957 : 149,818.86 = 55,562.52 : x
  2. Step 2: Convert to fraction form
    99,957/149,818.86 = 55,562.52/x
  3. Step 3: Cross multiply
    99,957x = 149,818.86 × 55,562.52
  4. Step 4: Simplify right side
    99,957x = 8,324,313,405.13
  5. Step 5: Solve for x
    x = 8,324,313,405.13/99,957
  6. Step 6: Final answer
    x = 83,278.94

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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.