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Finding the Fourth Proportional to 99,804.56, 149,661.68 and 28,710.86

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Solution

The fourth proportional to 99,804.56, 149,661.68 and 28,710.86 is: 43,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,804.56 : 149,661.68 = 28,710.86 : x
  2. Step 2: Convert to fraction form
    99,804.56/149,661.68 = 28,710.86/x
  3. Step 3: Cross multiply
    99,804.56x = 149,661.68 × 28,710.86
  4. Step 4: Simplify right side
    99,804.56x = 4,296,914,649.98
  5. Step 5: Solve for x
    x = 4,296,914,649.98/99,804.56
  6. Step 6: Final answer
    x = 43,053.29

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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.