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Finding the Fourth Proportional to 99,714.66, 149,488.09 and 46,379.53

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Solution

The fourth proportional to 99,714.66, 149,488.09 and 46,379.53 is: 69,530.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,714.66 : 149,488.09 = 46,379.53 : x
  2. Step 2: Convert to fraction form
    99,714.66/149,488.09 = 46,379.53/x
  3. Step 3: Cross multiply
    99,714.66x = 149,488.09 × 46,379.53
  4. Step 4: Simplify right side
    99,714.66x = 6,933,187,425.71
  5. Step 5: Solve for x
    x = 6,933,187,425.71/99,714.66
  6. Step 6: Final answer
    x = 69,530.27

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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.