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Finding the Fourth Proportional to 312,806.61, 469,237.59 and 88,169.04

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Solution

The fourth proportional to 312,806.61, 469,237.59 and 88,169.04 is: 132,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,806.61 : 469,237.59 = 88,169.04 : x
  2. Step 2: Convert to fraction form
    312,806.61/469,237.59 = 88,169.04/x
  3. Step 3: Cross multiply
    312,806.61x = 469,237.59 × 88,169.04
  4. Step 4: Simplify right side
    312,806.61x = 41,372,227,842.21
  5. Step 5: Solve for x
    x = 41,372,227,842.21/312,806.61
  6. Step 6: Final answer
    x = 132,261.36

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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.