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Finding the Fourth Proportional to 312,858.80, 469,246.57 and 88,237.27

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Solution

The fourth proportional to 312,858.80, 469,246.57 and 88,237.27 is: 132,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,858.80 : 469,246.57 = 88,237.27 : x
  2. Step 2: Convert to fraction form
    312,858.80/469,246.57 = 88,237.27/x
  3. Step 3: Cross multiply
    312,858.80x = 469,246.57 × 88,237.27
  4. Step 4: Simplify right side
    312,858.80x = 41,405,034,899.95
  5. Step 5: Solve for x
    x = 41,405,034,899.95/312,858.80
  6. Step 6: Final answer
    x = 132,344.16

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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.